Dr Quinn Medicine Women with Jane Seymour, is a guilty pleasure, has been since the 90's it wasn't even cool at the time it was broadcast I don't think.
I can always sniff out repeat episodes when it is on. Usually weekdays in the day time, on the hallmark channel or ITV 3 these days.
oh while we are on costume dramas. I have watched the last couple of series of Larkrise to Candleford and enjoyed it. I think that is beginning to be a bit of a guilty pleasure.