Please let me know in a comment what you consider to be the worst anime of all time. It can be from any year and any genre, and if you can’t decide between two or more titles then feel free to go ahead and list them all. Do not feel that you need to justify your choice in any way – in fact, I’d actually prefer if you didn’t give any details at all other than the name of your pick.
Only two restrictions apply. First, I only care about TV shows, so no nominations for movies, OVAs, ONAs, or specials please. And second, I only care about first-hand impressions, which means that you need to have watched the show yourself rather than just heard or read about it. You don’t need to have watched the entire thing, but I’d prefer it if you’ve seen at least a couple of episodes of whatever title(s) you end up listing.
Have at it, people! The more the merrier.