Haven't seen this particular version of MY OLD MAN but FYI I've just seen the disc SEVEN OF ONE, showing 7 short pilots of potential series filmed in the 70s in which Ronnie Barker did the central character.
Ronnie played this character Sam Cobbett, an elder who's the last resident to move out of a condemned street and into a modern centrally heated high rise with his daughter and family. Sam despises all aspects of the new place which is so alien to his old way of life but the dialogue is funny and poignant. The clash of old and new is a revelation. Hopefully the scripts were similar in this Clive Dunn version which I'm putting on my CP list.
The pilot was excellent so I'm awarding the Clive version a good rating.