I'm looking for a little-known film by Nina Hartley.

[Vot_]

I look for a vintage movie (from the mid-80's) that was more or less like this: there was a marriage that had a daughter, who showed up at the house with her boyfriend and stayed watching television. The parents went up to their room and also watched the television. The plot of the film spent more than anything for the content of the programs, since they were sexual parodies of programs of competitions. I remember the programs consisted of women having sex in different situations, one of those women was Nina Hartley, which appears in the last scene. As the program passed, the parents had sex with each other and the daughter and her boyfriend had sex on the couch. At the end of the movie, the boys go up to the parents room and have a foursome in the marriage bed. The movie itself was a comedy.
Does anyone know anything about a movie like this? I appreciate any information.