With Nintendo feel free to include their treehouse live coverage since they've put a lot of focus on those.
Microsoft 2013:
mgsv gameplay trailer
world of tanks console reveal
max curse of brotherhood announced
dark souls 2 reveal
ryse announcement and gameplay
killer instinct reveal with live gameplay
sunset overdrive announcement
car on stage and forza 5
minecraft for xbox one
quantum break new trailer
D4 reveal trailer
Project Spark announcement and demo
smartglass talk
crimson dragon without audio
dead rising 3 premiere
witcher 3 game footage
battlefield 4 gameplay eventually
below teaser
black tusk shangheist teaser
halo teaser
titanfall reveal
Sony 2013:
Vita ports and quick talk about it
TLOU launch trailer
Puppeteer trailer
Rain trailer
Beyond Two Souls trailer
GT6 trailer
Arkham Origins trailer
Long Sony pictures segment
Order 1886 reveal
Killzone shadow fall trailer
Driveclub trailer
Infamous second son trailer
Knack trailer
Quantic Dream demo
Transistor announced
Don't starve announced
Mercenary Kings announced
Octodad dadliest catch announced
Secret Ponchos announced
Ray's the dead announced
Outlast announced
Oddworld new and tastey announced
Galak Z announced
FF15 reveal
Kingdom Hearts 3 reveal
AC4 gameplay with crash
Watchdogs gameplay
2k basketball thing
Elder scrolls online trailer
Mad Max reveal
Destiny gameplay premiere
Nintendo 2013:
Pokemon XY trailer
Super Mario 3D world announcement
Mario Kart 8 announcement
Wii Party U trailer
Art Academy for Wii U announcement
Rappid showing of 3rd party games
/*AC4 trailer
Batman Arkham Origins trailer
Origins blackgate trailer
Human revolution trailer
Disney Infinity trailer
Just Dance 2014 trailer
Rayman Legends trailer
Scribblenauts DC comics trailer
Disney's Planes trailer
Shin Megami Tensei IV trailer
Skylanders SWAP force trailer
Splinter Cell Blacklist trailer
Sonic Lost World trailer
Watch Dogs trailer*/
eshop games
Zelda Wind Waker HD trailer
Wonderful 101 trailer
Donkey Kong Country Tropical Freeze announcement
Bayonetta 2 trailer and gameplay
Xenoblade Chronicles X reveal
Super Smash Bros Wii U and 3DS reveal
Microsoft 2014:
Call of Duty Advanced Warfare gameplay reveal
FM5 dlc talk
Forza Horizon 2 trailer
Evolve trailer
Assassin's Creed Unity gameplay
Dragon Age Inquisition trailer
Sunset Overdrive trailer and gameplay
Dead Rising 3 DLC trailer
Fable Legends gameplay
Project Spark trailer
Ori and the Blind Forest announcement
Halo 5 semi trailer
Halo MCC announcement and gameplay
Halo 5 multiplayer trailer
Inside announcement
ID@xbox montage
Rise of the tomb raider reveal
Witcher 3 gameplay
Phantom Dust announcement
The Division gameplay
Scalebound announcement
Crackdown 3 announcement
Sony 2014:
Destiny trailer
Order 1886 gameplay
Entwined announcement
infamous first light DLC announcement
LittleBigPlanet 3 reveal and demo
Bloodborne reveal
Far Cry 4 gameplay
Dead Island 2 announcement
Battlefield Hardline trailer
Magicka 2 announcement
Grim Fandango remaster announcement
Devolver montage
Talos Principle PS4 trailer
Let It Die announcement
ABZU announcement
NMS trailer
Free to Play montage
Mortal Kombat X reveal
Powers TV show
Ratchet and Clank movie
Ratchet and Clank remaster announcement
TLOU remaster trailer
MGSV trailer
GTAV port announcement trailer
Batman Arkham Knight reveal
Uncharted 4 re-reveal
Nintendo 2014:
Robot Chicken scetch
Super Smash Bros 4 trailer
Yoshi's Woolly World announcement
Captain Toad treasure tracker announcement
Zelda trailer saying 2015 release
Pokemon Alpha Sapphire Omega Ruby trailer
Bayonetta 2 trailer
Hyrule Warriors trailer
Kirby and the rainbow curse announcement
Xenoblade Chronicles X trailer
Super Mario Maker announcement
Splatoon reveal
Super Smash Bros second trailer
Star Fox teaser
Treehouse: project guard, project giant robot, Star fox
Microsoft 2015:
Halo 5 trailer and gameplay
Recore announcement
Xbox BC announced and demoed
Fallout 4 demo
Plants vs Zombies Garden Warfare 2 announcement
Forza 6 trailer and car
Dark Souls 3 reveal
The Division trailer
Rainbow Six Siege trailer
Gigantic reveal
Indie game montage
Tacoma trailer
Ashen trailer
Beyond Eyes trailer
Cuphead trailer
Ion reveal
Rise of the Tomb Raider gameplay
Rare Replay announcement
Sea of Thieves announcement
Fable Legends trailer
Hololens Minecraft demo
Gears of War Ultimate reveal
Gears 4 reveal
Sony 2015:
The Last Guardian re-reveal
Horizon reveal
Hitman trailer
Street Fighter 5 trailer
No Man's Sky trailer
Dreams reveal
Firewatch reveal
Destiny Taken king announcement
Assassin's Creed Syndicate trailer
World of Final Fantasy announcement
Final Fantasy 7 remake announcement
Ronin announcement
Eitr announcement
Mother Russia Bleeds announcement
Crossing Souls announcement
Shenmue 3 kickstarter announcement
Batman Arkham Knight trailer
Rigs announcement
Call of Duty Black Ops 3 gameplay
Until Dawn in a montage
Disney Infinity 3.0 trailer
Star Wars Battlefront trailer
Uncharted 4 gameplay
Nintendo 2015:
Star Fox Zero reveal and gameplay
Mario Maker talk/trailer
Skylanders superchargers gameplay
Zelda Triforce heroes reveal
Hyrule Warriors 3DS port announced
Metroid Prime Federation Force reveal
Fire Emblem Fates trailer
Tokyo Mirage Sessions ♯FE trailer
Xenoblade Chronicles X trailer
AC Happy Home Designer announcement
AC amiibo Festival announcement
Yoshi's woolly world trailer
Yokai Watch trailer
Mario and Luigi Paper Jam reveal
Mario Tennis Ultra Smash reveal
Super Mario Maker gameplay
Microsoft 2016:
Gears 4 gameplay
Killer Instinct trailer
Forza Horizon 3 reveal and gameplay
Recore trailer
FF15 gameplay
The Division trailer
Battlefield One trailer
Minecraft gameplay
Inside trailer
indie montage
We happy few gameplay
Gwent game reveal
Tekken 7 gameplay
Dead Rising 4 reveal
Scalebound gameplay
Sea of Thieves trailer/gameplay
State of Decay 2 announcement
Halo Wars 2 trailer
Sony 2016:
God of War reveal and gameplay
Days Gone announcement
The Last Guardian trailer
Horizon gameplay
*really bad camera editing for the whole show
Detroit trailer
Resident Evil 7 announcement
Farpoint announcement
Battlefront VR Mission announcement
Batman VR announcement
FF 15 trailer
FF 15 VR thing announcement
Call of Duty Infinite Warfare gameplay
COD modern warfare remaster announcement
Crash remaster reveal
Skylanders imaginators trailer
Lego Star Wars trailer
Death Stranding reveal
Spiderman reveal
Days Gone gameplay
Nintendo 2016:
Legend of Zelda Breath of the Wild trailer
Treehouse: zelda gameplay, pokemon gameplay
Xbox 2017:
Forza 7 reveal and a car
Metro Exodus reveal
Assassin's Creed Origins reveal trailer and gameplay
PUBG trailer
Deep Rock Galactic XB1 reveal
State of Decay 2 long trailer
The Darwin Project reveal with shoutcaster
Minecraft better together announcement and 4K supa graphics!
Dragonball FighterZ announcement
Black Desert trailer
The Last Night trailer
The Artfull escape trailer
Code Vein trailer
Sea of Thieves gameplay
Tacoma trailer
Super Lucky's Tale reveal
Cuphead trailer
Crackdown 3 trailer
ID@Xbox Game montage
Ashen trailer
Life is Strange: Before the Storm announcement
Shadow of War trailer
Ori and the Blind forest 2 reveal with live piano
Anthem reveal and gameplay
PlayStation 2017:
Uncharted Lost Legacy trailer
Horizon Frozen Wilds announcment
*horrible camera guy again
Days Gone gameplay
*people hanging from the ceiling
Monster Hunter World reveal
Sotc remaster reveal
Marvel Vs Capcom Infinite trailer
COD WW2 trailer
Skyrim VR reveal
Star Child trailer
The Inpatient trailer
FF 15 fishing VR trailer
Bravo Team announcement
Moss reveal
God of War trailer
Detroit trailer
Destiny 2 trailer
Spiderman gameplay
Nintendo 2017:
Switch montage
Xenoblade Chronicles 2 trailer
Kirby switch reveal
Pokken kinda trailer
Pokemon switch announcement
Metroid Prime 4 announcement
Yoshi Paper reveal
Fire Emblem warriors trailer
Botw DLC trailer
Mario+Rabbids Kingdom Battle trailer
Rocket League trailer
Super Mario Odyssey trailer