Simple really - just a bit of fun.
Someone posts an image from a TV show or a video game, then someone else has a guess at what the programme/film/game could be. Also, if people feel like it, they can post a witty remark about the screenshot.
Not sure if this'll be successful, but I like to give things a try.
Example:
post 1
[IMAGE]
post 2
[WHAT THE PROGRAMME IS (AND COMMENT IF NECESSARY)]
I'll start off. Please tell me if this idea has been done/is unnecessary.
