Posted this in old house, etc. ... have knotty pine paneling that has darkened with age... no protective finish on it (50 years).

Bleach don't work, fnatastik don't work, 409 don't work, deck cleaner don't work, ammonia don't work (although combined with Lysol, it does take a lot of Nicotine out)... any ideas to brighten it up??

Tearing it out isn't an option as 5 sections of it ARE the wall.