Mind Your Language
Used some of the same jokes from Mind Your language almost word for word. For example, in the episode where the family go on a Sunday picnic.
shareThat episode was written by Vince Powell, who created Mind Your Language.
Another writer of Bless This House re-used some of his storylines when writing for Terry and June ten years or so later.
The similar episodes were the one where Sid pretends to lose his memory and Terry doesn't tell June that he's got his memory back after hitting his head on a train.
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https://goo.gl/gMCsmQ