Winter Olympics (8 p.m., NBC): Dance off! The Winter Olympics continues with what was expected to be one of the hottest rivalries of the Games: the ice dancing competition that pits defending Olympic champions Tessa Virtue and Scott Moir of Canada against reigning world champs Meryl Davis and Charlie White of the U.S.
"Star Crossed" (8 p.m., The CW): Would you allow your daughter to date someone from another planet? This new drama follows a Romeo and Juliet-like romance between a human girl (Aimee Teegarden) and an alien boy (Matt Lanter), amid a great deal of disapproval.
"The Tonight Show Starring Jimmy Fallon" (midnight, NBC): The torch has been passed. Former "Saturday Night Live" funnyman and "Late Night" headliner Jimmy Fallon gets his shot at the big leagues when he succeeds Jay Leno and becomes only the sixth host of NBC's storied franchise. The other big change? The show jumps coasts to New York City for the first time since Johnny Carson moved it west in 1972. Fallon's first guests are actor Will Smith and rock group U2. (The show moves to its regular 11:35 p.m. time slot on Feb. 21.)
Also on Monday: