There is a preview of a game show called "Strip Solitare". No nudity is shown though.

Brief moment where an elderly woman is asked her opinion on sex with furniture.

Some women wear revealing clothing.

A thumb is severed by table saw with copious amounts of cartoonish, spurting blood (That's why UHF got the PG-13 rating). Fist fights, numerous gunfights, bodies non-graphically exploding after being hit by arrows or bullets, staple gun being fired on a person's face, person comically cleaved in half by a sword with no blood or gore, karate players falling through windows, body flattened by giant rock.

A man backs out of a cave entrance and is comically knocked over by a speeding train

Dogs are "taught how to fly" by being thrown out of a third floor window.

Four instances of "hell", one of "butt", two of "sucks", 14 minced oaths and 1 use of crap.

Also a great deal of name calling, such as "idiot", "moron", "scuzbag", "stupid", "slimeball", "you little weasel", et al.

George and Bob visit a bar. Uncle Harvey is always seen with a cigar.

A used car salesman threatens to club a baby seal if people don't buy his cars. Humorous, but very jarring.

There is a jumpscare when George and Terry enter the part of the TV station where Philo works/lives.

Stanley is held up at gun point by a bunch of thugs towards the end.