honestly no pun intended
I started watching it around 1980 when I was 7 and the vast majority of jokes went over my head but even at that age I could kinda get the MIL jokes. I stuck with it and could understand more and more the humour at the years went on and just LOVED the hilarious chase sequence at the end!
There’s a lot of comedy threads atm and Mrs Brown’s Boys is unpopular with the majority (though not me) - different reactions to Gavin and Stacey.
But I loved Benny Hill and watched it from infant school age. So there ! 🤣