Being in the UK, I rarely got to participate because the game they played was usually released the next day. But there were 2 occasions I got close.
Mortal Kombat was released on a Thursday because the Friday was Good Friday so shops were closed. But I had the PS3 version and that was the time PSN got royally fucked and was down for a month.
The second time was Duke Nukem 3D. I got so far as an invite from Brad but when I tried to connect it failed. Either too full or I was too far away.
After them rejections I relegated myself to viewer and mostly enjoyed them that way. I'd love for it to return it some other feature where the community got to play with the guys. I'm sure someone would defeat that damned Fish.