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

First Dates (Channel 4, 10pm)

The last season ended with a proposal (and there was another one soon after), so this new batch of daters has a lot to live up to. #firstdates

Mr Selfridge (UTV Ireland, 9pm)

Jeremy Piven reprises his role as the founder of Selfridges department store in London in the fourth season of this period drama. In the second episode of the season, Mr Selfridge hopes to open a cutting-edge technology department. #mrselfridge

The Social Network (RTÉ2, 9pm)

Jesse Eisenberg stars as Facebook founder Mark Zuckerberg in this film about the beginnings of the social network, penned by Aaron Sorkin and directed by David Fincher.

Everybody’s talking about: The Friends reunion

AP / Press Association Images AP / Press Association Images / Press Association Images

Sorry to tell you, but the two-hour Friends tribute announced earlier this week is already going to the dogs. NBC execs wanted all six Friends back for an homage to the late producer James Burrows, but not everyone is going to make it.

Matthew Perry has confirmed that he won’t be there as he has prior commitments to a play in London, but he may be around to pre-record something for the programme.

So it’s not quite the big happy reunion we all wanted. Boo :(

Or flick over for…

• Stargazing Live (BBC2, 9pm) Dara Ó Briain and Brian Cox watch as astronaut Tim Peake goes on his first space walk. 
• Celebrity Big Brother (TV3, 9pm) After a dramatic week, someone is getting evicted. But who?
• The Late Late Show (RTÉ One, 9.35pm) Bobby Kerr gives his first interview since his cancer diagnosis, and Eastenders stars Shane Ritchie and Jessie Wallace also stop in.
• Red Dragon (TV3, 11pm) Anthony Hopkins stars in this prequel to The Silence of the Lambs.