TV Top 5.
"The Fosters'' (8 p.m. and midnight, FAM) Christmas is celebrated by the Fosters, and Stef feels that Sharon is being overgenerous. Meanwhile, a neighbor accuses Jesus of cheating in a house-decoration contest; and Jude overcompensates with Callie to alleviate his guilt over having been adopted.
"The Great Christmas Light Fight'' (8 p.m., Ch. 5) Season 2 begins with competing families showcasing their elaborate Christmas displays for the chance to win $50,000.
"The Voice'' (8 p.m., Chs. 7, 10 and 22) The semifinal round opens with the Top 5 artists performing.
"Monday Night Football'' (8:15 p.m., ESPN) Atlanta (5-7) at Green Bay (9-3).
"Mike & Molly'' (8:31 p.m., Chs. 4 and 12) In the Season 5 premiere, Molly completes her eight-week writers' workshop and returns to Chicago with big news.
"Jane the Virgin'' (9 p.m., Ch. 56) A music producer contacts Xo about recording a demo, but Xo's unaware that Rogelio is behind this. Meanwhile, Jane and Rafael share surprising secrets with one another; Michael comes close to solving his case; and Petra won't make things easy for Rafael.
"Major Crimes'' (9 p.m. and 10 p.m., TNT) A former child star is found dead, and the actor's director and his manager surface as suspects. Meanwhile, Flynn's daughter visits, and the truth about Sharon and Flynn's relationship comes to light.
"Scorpion'' (9 p.m., Chs. 4 and 12) Sylvester is seriously injured when he accidentally triggers an explosive device during an investigation.
"Switched at Birth'' (9 p.m. and 1 a.m., FAM) Family Christmas traditions bore Bay and Daphne, who eat some enchanted garlic knots and envision their lives as if the switch had never happened.