How do laser disc's look on plasma TV?

I have a Japanese 919 myself and it is just a so-so LD player. If you want the best available player made for the US market, go with a Pioneer Elite CLD-97, Pioneer CLD-D704, or Mcintosh MLD-7020 which is the same as the Elite. There are a few more that are good such as some of the Thetas or EADs but the are based on the best Pioneer transports. I have a Japanese HLD-X9 which is the best LD player made. It is also playes Hi Def Muse LDs.

Rwwear,
Most of my Laser disc's on the back say they have digital sound. Even the older ones with CX coding. I was told that the picture is analog though. Of these laser disc players you mention any of them play both formats.

None of the best ones play both formats in fact the X9 only plays LDs, no CDs. I borrowed this info about the digital sound of LDs.
(Unlike DVDs, which carry Dolby Digital audio in digital form, Laserdiscs store Dolby Digital in a frequency modulated form within a track normally used for analog audio. Extracting Dolby Digital from a Laserdisc required a player equipped with a special "AC-3 RF" output and an external demodulator in addition to an AC-3 decoder. The demodulator was necessary to convert the 2.88 MHz modulated AC-3 information on the disc and convert it into a 384 kbit/s signal that the decoder could understand. DTS audio took the place of the PCM audio tracks, and required only a direct connection via Optical Audio cable and a decoder to be heard.)

Early LD's had analog audio tracks only. In the late '80's PCM digital tracks were added. Any player I am aware made after that point will play both the analog and digital soundtracks.
As Rwwear says, if it has Dolby Digital (it will usually say AC3 on the back). And it will require the special player/demodulator. Dolby digital discs still have the PCM digital tracks in case you do not have a DD player.
And yes, the video is FM-modulated analog.
John