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

Eurovision Semi-Final (RTÉ One, 8pm)

Our own Molly Sterling battles it out for a place in the Saturday’s final with her song, Playing With Numbers.
She’s facing 16 other countries including Lithuania, Portugal, Israel and Sweden.
Fingers, toes and everything else crossed. #Eurovision2015

Mad Men (Sky Atlantic, 10pm)

Irish viewers finally get the chance to see the last ever episode, which caused so much chatter earlier this week. It got a mixed reaction from fans overseas, but we’ll let you make up your own mind. #madmen

The Jinx (Sky Atlantic, 9pm)

This compelling documentary wraps up tonight in an explosive finale - its subject Robert Durst had been arrested on the day before it aired in the US in March. His off-camera statement at the end of the episode is the clincher. Do not miss. #thejinx

Everybody’s talking about: #Letterman

Talk show vet David Letterman retired from The Late Show after 33 years last night, following a week of the creme de la creme of celebrity guests. Here’s his final opening monologue:

Or switch over for…

• The British Soap Awards 2015 (UTV Ireland, 8pm) Expect more polyester and fake tan than an entire Penneys. 
• Born Naughty? (Channel 4, 8pm) Doctors meet children with behavioural issues.
• Red Rock (TV3, 8.30pm) The soap continues.
• The Honourable Woman (TG4, 9.30pm) Maggie Gyllenhaal stars in this political-spy thriller.
• Big Brother (TV3, 10pm) Catch up on the day’s events in the house.