Every lunchtime, DailyEdge.ie rounds up the TV shows that you’ll be tweeting about tonight and talking about tomorrow.

Christmas University Challenge (BBC 2, 8.35pm) 

Listen, if there’s a chance Jezzer Paxman might be weating a Santy hat and saying ‘ho ho ho’, we’re there. This special series of University Challenge sees distinguished graduates of top level colleges returning to battle it out. How many can you get right? #UniversityChallenge.

Harry Potter and the Half Blood Prince (UTV, 7pm) 

Christmas film season is getting into full swing so why not cuddle in with the sixth instament in the Harry Potter film series. When it was released, this film broke the record for the biggest single-day worldwide gross of all time. So now. #HarryPotter

What Richard Did (RTÉ Two, 9.30pm) 

Jack Reynor stars in this acclaimed Lenny Abrahamson film; a fictional story based on the assault on and subsequent death of Brian Murphy outside Annabel’s nightclub in Dublinin August 2000. #WhatRichardDid 

Everybody’s talking about… Gary Barlow’s Christmas cracker

Take That were on the Late Late Show last night (along with Hozier and Pat Shortt) and during their segment they got into the festive swing of things by pulling some crackers.

Gary Barlow didn’t seem too impressed with the joke in his though, and refused to read it out.

What do you think it said? Answers on a postcard (or in the comments section) please?

Or switch over for…

• It’s Complicated (RTÉ One, 10pm) Charming rom com starring Meryl Streep and Steve Martin 
• Four Christmases (Channel 4, 9.30pm) It’s not the greatest Christmas film ever, but it’s better than nothing
• Strictly Come Dancing (BBC1, 6.30pm) It’s the final!
• The Cube (TV3, 8.30pm) Seriously addictive game show