Grandpa’s Great Escape

BBC ONE, 6.55PM

 There’s just time to squeeze in one last festive treat with this lovely adaptation of one of David Walliams’s most enjoyable books. Tom Courtenay plays the eponymous Grandpa, a former Second World War pilot who is living with Alzheimer’s disease and is stuck in a dreadful care home. Can grandson Jack (Kit Connor) help him mount one final escape? SH