Unscripted to scripted
Reality stars who became TV thespians
Hooray for Dave
David Letterman's Top 30 memorable TV moments
What the heck?!
Top 20 Most Outrageous TV Show Ideas
Good times
Top 20 Moments from the Television Critics Association
Behind bars
The most notable prison TV shows of all time
'Big' winners
Before and after photos from 'The Biggest Loser'