I have this vague recollection of either a tv-show or novel where the protagonist travels to some other dimension where they become involved with some kind of game show (the closest thing I can think of is a bit like Mojoworld). They do this by turning on the tv to a normally non-tranmitting channel at a specific time one morning and somehow this allows the two worlds to sync up, I think first allowing the game show to be seen on the tv, and then transporting the protagonist to the other world. As I'm Australian I wonder if this an Australian series but might well be American. Thanks
Sounds a bit like the Australian children's show The Finder, also known as Finders Keepers, which was based on the novel Finders Keepers by Emily Rodda. See the description on wikipedia.