Before announcing, I'd like to humbly apologize to everyone for the corny-ass title.
Now, we know G4 is already going to die and be reincarnated into a GQ-like channel, but according to G4TV's Website as well as ANN, both X-Play and Attack of the Show are cancelled and will die with G4 after being within the channel since their beginning years. They will hold a two-month celebration until the set day that both shows will end.
To be honest, I don't mind AOTS being killed off since I stopped watching it for 2 or 3 years (minus that one day when one of Joey's crazed-up videos from back then was featured there), but X-Play's death sentence is a low blow. Up until ignoring the better fighting and RPG games from this year, X-Play was actually fun to watch. So, an "I'll miss you" for X-Play and a "Good fucking riddance" for AOTS.
EDIT: Spelling corrections, Added the link to Joey's video and to where I found the news first.