Easily in the top 10 cool things on TV in the 1970s was the episode of the Six Million Dollar Man in which Steve Austin fights Bigfoot, who as it turns out is also bionic and has been created by aliens for some reason that I cannot recall all these many decades ever.
One thing I didn't notice as a kid was the possible Beowulf analogue that we see around minute 6 of the clip below:
Steve Austin rips off Bigfoot's arm, then Bigfoot flees into some sort of underground lair. As I remember (and if anyone has seen the full episode more recently, please correct any of my errors), as it turns out, Bigfoot is just misunderstood, and they end up freezing him in cryogenic stasis or some other such thing.
It's possible that the arm-ripping isn't a Beowulf allusion, and is just a coincidence -- but then I wouldn't get the chance to post something so awesome on the Wordhoard, would I? Oh, and by the way, if you don't think the Six Million Dollar Man fighting Bigfoot is cool, then you are a bad person.