I've got a couple...
- Red Dwarf - I know it sort of looks like Doctor Who, and it's a comedy, and that's about it.
- E.T. The Extra-terrestrial - Never saw it, never cared.
- The Fifth Element - Ditto.
- BECMI - I've played and loved Holmes, but never played any of the other "Basic" D&D boxed sets.
How about you? What iconic nerd-thing have you just never gotten around to?