Some years ago I watched a TV series about a Mafia-style contemporary vampire family.
It was American (or possibly Canadian) and centred on a man who had separated himself from the family but returned to become a sort of consigliere.
There may have been slight black humour but I'm sure it wasn't a comedy. I remember some Dracula-type wall climbing and romance.
It was shown late at night on UK television in the 80s or 90s. I enjoyed it very much but I think it only had a very short run and possibly had been canceled early.
Additional: I seem to remember the MC being a smooth, Italian-looking guy, perhaps. Also the vampire bit was rather subtext, at least to begin with. Not much vampire lore and single family oriented.