A lot of many horror films have given me "jump scares" over the years...
But there have only been a few that really freaked me out for more than a night.
A relatively unknown flick from 1972 called "The Grave of the Vampire" did just that.
It wasn't a "made for TV" flick but was a limited theater-run type flick that ended up on TV not long after its initial release.
The violence was pretty intense for a film being shown on regular TV, but that was topped by the vampire raping a woman and her conceiving his child. You don't see the actual rape, but the lead-in to the rape was graphic and obvious.
The film bothered me for days after.