What to Watch: Tues, September 18

Tonight, find out which programs TV fans voted "The Greatest Shows of Our Time"

20/20: Best in TV — The Greatest Shows of Our Time will feature guests like Tim Allen

A Special Edition of 20/20: Best in TV — The Greatest Shows of Our Time
9 p.m., Joytv & ABC
How can they expect to recap TV’s greatest shows in a mere two hours? Find out by watching this special, which presents the results of lengthy online polling and a panel including director James L. Brooks, star Tim Allen (above) and American Idol host Ryan Seacrest. The shows that made the cut will be listed and honoured with classic clips and interviews with the TV legends who starred in them.

The Oprah Winfrey Show: 25 Best Moments
5 p.m., OWN
After sifting through over 4,000 hours of videotape, the editors of TV Guide have settled on the 25 top moments from the 25 seasons of The Oprah Winfrey Show, which are presented in this limited-run new series. Just a wild guess, but I suspect we’ll see Tom Cruise’s maniacal couch jump.

Hot Set (New Series)
7 p.m. & Midnight, Space
In tonight’s episode of this Tinseltown-shot reality series, two of Hollywood’s top production designers go head-to-head to create a battleground movie set in just three days and on a limited budget.

So You Think You Can Dance (Season Finale)
8 p.m., CTV2 & Fox
Nigel Lythgoe and his team of judges can almost put away their sharp tongues for another season as the final dancers strut their stuff before the final decision is made and this season’s winner crowned.

The Burn With Jeff Ross (Season Finale)
10:30 p.m., Comedy
After a short six-week run, this sharp-tongued comedy finishes up its first season with “Roastmaster General” Jeff Ross and his assortment of skilled comedy roasters lambasting the week’s newsmakers for one final time.