The timeclock before this episode lists a recording date of 18th May 1979.
Clive Dunn was well known for playing roles much older than his actual age, most famously in Dad's Army (1968-1977), and in costume for his No.1 hit single "Grandad". (Despite the title, it was released in 1970 and was unrelated to this programme, though may have, in part, inspired it).
Dialogue in this episode states that Charlie (Dunn) is 73 years old - in real life Clive Dunn was just 59.
Dialogue in this episode states that Charlie (Dunn) is 73 years old - in real life Clive Dunn was just 59.
Although not officially linked to Clive Dunn's 1970 single "Grandad", the incidental music twice alludes to the record during this episode.
Although the character Clive Dunn plays has the name "Charlie Quick" both in the programme and in the theme song, he's only ever credited as "Grandad".