Sunday roast was sacrosanct and was always served at about 2 - 2.30pm because it took so long to cook! We always did the Sunday Express general knowledge crossword over Sunday dinner (my parents didn't get newspapers any other day of the week). The rule was: complete as many questions as possible from our own joint general knowledge, then we were allowed to consult reference books at the end for any answers which we didn't know. I gained a HUGE amount of completely useless trivia knowledge this way!
Apart from this, the only meal of the week which ever followed a set pattern was something called 'high tea' which ONLY happened on Saturdays in winter. This was because my dad played cricket on Saturdays from April - October so was never there at tea-time. Winter Saturday high tea consisted of kippers (which I hated because of all the bones), bread and butter, a pot of tea on the table, and for 'afters', cream cakes from the baker's - one each, only. It was a massive deal for some reason, and my mum would put a plain white tablecloth on, with a lacy crocheted one over the top of it. Only for high tea, never any other time!
My dad had a love-hate relationship with the TV. If my mum or I were watching something, he'd complain endlessly that it was 'bloody rubbish' and essentially bully us into switching it off or at least make the experience of watching it very stressful. I mostly watched fairly adult drama shows with my parents throughout my childhood because my dad moaned endlessly about children's programmes, pop music etc, to the point where I decided it wasn't worth the bother - except for Doctor Who!
But if there was something HE wanted to watch (usually sport or comedy shows) then everything stopped for that. Sometimes there was even a major ritual called Turning The Television Round, which meant watching it over dinner (a thing usually forbidden unless the programme was of ultimate importance!). ITV was disapproved of, but again an exception was made if it was something my dad liked.