I really can't give you a deadline on this contest, since we don't know when we'll hear of a new show's demise. So, you'd better get your guess in before it's too late!

Make sure you read the full rules at the original post and also post your guess in a comment to that post (not this one). You'll have to make sure you don't duplicate another person's guess, so choose carefully -- you only get one shot at it.

Good luck!