Mr. and Mrs. was an extremely twee weekday tea-time quiz show hosted by Derek Batey. It was aimed at older generations, but was watched by all (in our house anyway). Couples had to answer questions to test how well they knew each other. As most couples had been married for 50 years or more, the questions had to be challenging. I remember "which sock does he put on first in the morning?" - there was a 50% chance that she got it right!