It probably doesn't matter since the movies take place in a different universe than the TV series. While House deals with the Barnabas story, it quickly veers away from the TV story into a completely different story, and Night has no relation to the TV series or characters at all.
House was a revamping pardon the obvious pun of the early Barnabas era with a few changes made to allow for more recent actors on the series. I would watch it near the ernd of the run, if not after you finish. Night as Jtrue says has no relation to the series, albeit David Selby plays a 5th Quentin and other actors create new versions of previously named characters. It takes place after the series ends.