Eric Sykes' treatment of Hattie Jacques was so bad that her family banned him from attending her funeral and memorial service* ("You couldn't say we had a lot in common," he commented). This was mainly related to Sykes' behaviour during the sparsely-attended 1977-78 UK stage tour of the show, when he peevishly objected to her getting more applause or laughs or a better theatre dressing room. *The Sykes family have said that Eric (and his wife) were invited to Hattie's funeral by her family but he was unable to attend as he was working in Australia at the time. Several of Eric's children did attend instead. Sykes also spoke warmly and affectionately of Jacques in his autobiography published many years later. He also repeatedly ruled out any suggestion of a new series due to the absence of Hattie.
Although Eric Sykes and Hattie Jacques had fallen out, she still agreed to do the final 1979 season because her health problems meant she could not get insurance for other work.
When the series was repeated by the now-defunct Forces TV channel in the UK, it had to be shown with a warning for racist content. It is also shown with a warning on the That's TV channel.
Although explicitly a sequel series to 'Sykes and a...' (1960-65) with the same regular cast and characters, several episodes of this programme are colour remakes of episodes of the earlier monochrome series, using slightly revised scripts. (The monochrome episodes were not considered suitable to repeat in the early days of colour television in the UK, so favourite episodes were reshot in colour as part of this sequel series.)
It has often been claimed the series ended due to the death of Hattie Jacques. In reality "The BBC Honours Sykes" was intended to be the final episode.