The ever-wonderful Anne Reid and Derek Jacobi lead this 'it's never too late' love story from writer Sally Wainwright (At Home With the Braithwaites, Scott & Bailey). Celia and Alan fancied each other at school 60 - yes, 60 - years earlier but nothing came of it. Now, thanks to the wonder of Facebook, these silver surfers are back in touch and can finally act on their feelings. That's if they can get over the lifetime of baggage they've got trailing behind, notably grown-up daughters (prim Sarah Lancashire, bolshie Nicola Walker) who have issues of their own.

There hasn't been a good series about "second time around lovers" since Nineties sitcom As Time Goes By. This charming comedy-drama ends that drought in style. Celia Dawson (Anne Reid) and Alan Buttershaw (Derek Jacobi) are both widowed and haven't seen each other for 60 years. When the old flames are reunited via Facebook, their feelings are reignited - and they discover that it was a twist of fate that separated them in the first place.

This is superior fare, based on writer Sally Wainwright's (Scott & Bailey) own mother's internet romance. It's also directed by Doctor Who alumnus Euros Lyn and made by estimable production company Red. However, it's the performances that truly elevate it - not just from classy leads Reid and Jacobi who are amusingly irascible and sweetly bumbling, respectively, but a strong supporting cast which includes Sarah Lancashire, Nicola Walker, Tony Gardner and Ronni Ancona. All come into their own over the six episodes, as the lovers' families are thrown together amid sub-plots involving bisexuality, alchoholism and a murder mystery. Watch out for a neat surprise in the final scene of this opener.

Acting stars begin filming on romcom Antony & Cleopatra

Ex-Coronation Street star Sarah Lancashire was back in the TV spotlight as BBC film crews took over Marsden to film a new series.

Pat and Margaret (Radio 4, 3.15pm) is a radio remake of Victoria Wood's bittersweet comedy about two sisters reunited after 27 years on a live television show. One is a toxic Hollywood star; the other works as a waitress in motorway service station. Sarah Lancashire and Imelda Staunton give knock-out performances here, but it's maybe not one to listen to with your siblings unless you all really get on.

The BBC describes Edge Falls - written by Paul Barnhill and Neil Warhurst, and starring Mark Benton and Sarah Lancashire - as a five-part comedy. But the line between that and tragedy has rarely seemed so thin.