solution. The machine sits in a standard Thinkpad port extender with a digital (DVI) output, and (as I discovered) DVI and HDMI are compatible signals. So a > simple, inexpensive DVI-to-HDMI cable makes the needed connection from PC to TV.
This assumes that the TV has HDMI, or DVI-D or DVI-I inputs. Some older TVs are only DVI-A compatible.
Added bonus: the switch from normal operation to TV watching can be handled by Presentation Manager (unlike the machinations needed with the R50/S-Video). For reasons I don't understand, Presentation Manager initially limits the DVI output to 1400x1050, which puts the video on the screen with a black frame around it, but once hooked up the DVI display resolution can be set higher so the image fills the screen.
You don't want to set the resolution higher, ideally you want to set it to map 1-1 to the screen, and failing that you want to minimize scaling artifacts. Most LED TV's - including the ones that are "1080p compatible" - don't have 1080 actual lines of resolution on their matrix.
DR
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