Philips G7000 (Odyssey2); x2 but one has broken controllers
Atari 2600
Nintendo NES
SEGA Mega Drive (Genesis); model 2
Nintendo SNES
Sony PlayStation
Nintendo 64; x3
SEGA Dreamcast
Nintendo GameCube
Nintendo Wii
Sony PlayStation 3
Nintendo WiiU
Most of those are hooked up to a tv, even the oldest ones. The only ones, besides the duplicates, I don't currently have hooked up are the GameCube, Dreamcast and PlayStation. When I have the money and it has the games, my next purchase should be a PlayStation 4, but I also still want an original XBox.
My portables are all Nintendo:
Nintendo GameBoy
Nintendo GameBoy Pocket
Nintendo GameBoy Color
Nintendo GameBoy Advance
Nintendo DSlite
Nintendo 3DS