The Homestar universe is filled with... plots... and some user-created ones are better than the real ones!
My idea: Strong Bad gets a Cable Box for the basement TV, but when he tries to turn it on, he presses 'Input' and gets sucked into the TV. He would then go across shows like Whadayasay Haddyman, The Show, The show with Eh! Steve, and The Cheat Commandos trying to find a way out. The Map would be the channel guide.