To be honest, the mkI eyeball is the best way to find if a player is AC3-RF capable or not when searching on-line.

I would easily tell you that most players made from 1995 and later have the AC3-RF output but good luck finding a seller that lists that bit of information on their ebay listing or whatever place you're planning to buy a player from.

Anyway, not sure why you find looking @ pics to be tedious. If a seller provides a good pic on their listing, the AC3-RF jack is easy to spot.

Quick PHP Hack:

=> LaserDisc Players equipped with AC-3 RF Out

Julien

Not sure how it eluded us for so long, but the different variations of the DENON AVC-3800 have AC3RF in!

Denon AVC-3800 (Japan)
Denon AVC-3800 (Europe, maybe also Australia?)

Julien