"The HBO Effect" or 'Movies You Half-See'

Before the Hulu's and BitTorrents of the world came to be, children of the 70's, 80's and 90's had two options to see a movie after it's theatrical pass: rental, or a showing on TV. For many years, Home Box Office (HBO) was THE place to catch these movies, as it was a pay channel that showed films mostly uncensored. Because of this, horror was huge on HBO in its heyday, and so was an effect that I like to call "The HBO Effect." Until recently, there were dozens of classic films that I caught while surfing through HBO and other channels but never saw in their entirety; "The Shining," "The Exorcist," and "The Fly" to name a few. Although I've made an effort to catch up, there are still a handful of classics and wacky horror efforts that I have yet to see in their entirety thanks to this phenomenon.

Poltergeist (1982)
Yes, I will soon be the first person born in the 80's to see Troma's "Poultrygeist" before I see its mock-namesake. This one is particularly frustrating because although I've never seen it all the way through, I've probably seen the ending about 6000 times.

Killer Clowns from Outer Space (1988)
As a kid, a mouthful of cotton candy was a dream come true, and this movie was my worst nightmare. The ONLY scene from this movie that I've seen is one that involves a room full of people wrapped in killer-cotton-candy-cocoons, and my inner child has struggled to recover ever since.

Misery (1990)
Unlike the rest of my list, I've seen most of this film in spots, and really liked what I saw. However, I still have yet to catch the whole thing in one sitting. I also have a tendency to tune in just in time for the "ankle smash" scene. Ouch.

Leprechaun (1993)
I can recite both 'Lep in Da Hood' movies from memory, but I never saw the original outside of clips in slasher compilations. In the same way that Kevin Costner is likely glad that I've never seen "Sizzle Beach, U.S.A.," Jennifer Aniston is probably not losing sleep over me never catching her finest work in "Leprechaun."

...and, just for nostalgia's sake:
Little Monsters (1989)
I still can't drink apple juice without thinking about this movie. Thanks Fred Savage.

Although the days of browsing through HBO and other movie channels are fading fast, "The HBO Effect" may live on for this generation on YouTube and other platforms. What are some of your favorite scenes from movies that you haven't seen all the way through?