8pm on PBS (check local listings; times may vary):
Did you catch last week's Pioneers of Television? We just happened to check out part one (a look at early sitcoms) of a four-part series and got totally sucked in. This week the show examines the influence of early late-night TV stars including Steve Allen, Jack Paar and Johnny Carson. Don't miss it!
9pm on The CW: I just got an update from Gossip Girl and one of our Upper Eastsiders might very well be... how shall I put this? Shopping at some really cute maternity shops? Apparently Jamie Lynn has taught us nothing?
10pm on MTV: The Real World gang's long and tumultuous stay Down Under finally comes to a close
10pm on BRAVO: This week on Project Runway, Heidi challenges the remaining designers to create the perfect prom dresses for a group of 16-year-old girls. OMG, NO WAY!
10pm on ABC: Zoe has a new rival on Cashmere Mafia, and when Mia becomes publisher she is forced to fire her mentor. OUCH.
Also Worth Watching:
New: Wife Swap, 8pm on ABC
New: Criminal Minds, 9pm on CBS
New: Law & Order, 10pm on NBC