Perhaps we can't quite tack it on the "consoles that run Doom" board, but an enterprising hardware hacker nonetheless managed to create a Doom level viewer for the Vectrex, that old 1982 vector-based home console. Since it's vector-based, there's no texturing or anything, but E1M1 is still readily recognizable, albeit in a sparse, wobbly Tron-esque way. The page detailing how it was done reveals that most of the heavy lifting is actually performed by a modern chip on a custom cartridge that passes the final result to the Vectrex for display. So sort of like a SNES Super FX chip, which SNES Doom utilized, so maybe it's not cheating that much after all. Thanks to It Runs Doom for the link.