8pm, Gossip Girl, ITV2
It’s crisis time for our dear friends when a family member ends up in hospital. Meanwhile, Nate tries to help his parents get over their past problems and reconcile.
• Catch it again on Sunday, 8.50am
9pm, Ugly Betty, E4 & HD
Carol Kane guest stars as Justin’s wacky acting teacher, Betty writes a feature about a mysterious man for Mode, and Wilhelmina suffers a perforated ulcer.
• Catch it again on E4, Saturday, 6.30pm and Channel 4, Sunday, 11.35am
9pm, Castle, Alibi
An amnesiac is the key witness to an art dealer’s murder, but can’t recall what happened. Castle and Beckett then discover a bullet is missing from the crime scene.
• Catch it again on Thursday, 8pm and Sunday, 9pm
10pm, Desperate Housewives, E4 & HD
Thanksgiving finds the Solises uncovering surprising news about the Sanchez family, while over at Brees some family secrets are unearthed when Keith’s parents visit. Meanwhile, poor Beth tries to uncover Paul’s past misdeeds. Don’t go there, girl!
• Catch it again on E4, Friday, 11.05pm and Channel 4, Sunday, 10.30pm
10pm, Mad Men, BBC4 & HD
SERIES FINALE The fourth season of the classy drama comes to an end with Don taking the kids to Disneyland, where he makes some life-altering decisions. Betty moves into her new house in Rye, but all is not rosy; and Joan shares some surprising news with Greg.
• Catch it again on Saturday, 10.45pm
9pm, Law & Order: Criminal Intent, Universal & HD
A government official blackmails two doctors for overcharging patients before he is killed; then Nichols has personal ties to a case involving the murder of an old friend.
• Catch it again on Saturday, 8pm & 9pm
10pm, Burn Notice, FX & HD
Michael infiltrates the fashion world while investigating a theft at a chic design house. Elsewhere, Michael and Fiona befriend a Polish intelligence officer in order to find information on a flight carrying dangerous cargo.
• Catch it again on Friday, 11pm