I was to explain my 'Buffy' quip that I made the other day - so here you go.
I am an absolute Buffy The Vampire Slayer nut. I have all of them except season 8 (which is like gold dust - never managed to find it) on video. One (and the only one) advantage of having the brain fog that goes with FMS/ME is that I can gently watch an episode or 2, and when I have worked my way to the last tape - I can start again at the beginning and re-watch them all. It takes me about 6 - 8 months to get through them all, so the most I see one is twice a year and it's like new.
The same works for Taggart - and for Midsomer Murders