Just as examples:
- I’ve never played a Pokemon game despite being just the right age where my peers were really into gen 1 as a kid.
- I have yet to watch any of the Alien or Predator franchise movies (except Prometheus, which I didn’t realize was in the Alien franchise when I watched it long ago) but am planning on rectifying that when I can get a chance.
I’ve never seen 2001: Space Odyssey, I already tried watching it multiple times, but always end up falling asleep.
Similarly, I’ve never managed to finish Firefly, usually watch a couple of episodes and forget about it.
Also up until very recently (less than 2 years ago) I had never played any Call of Duty games.