Does the fact that it can do horizontal or vertical interleaved help me in any way with trying to convert field sequential to it?
No, A450/B450 series only support 60 Hz progressive signal in VESA modes.
Best way is try and find a stereo player that supports both interlaced stereo and checkerboard output, so all the necessary transcoding is done in the player.
No, they don't
Do the PN42A/B450 or PN50A/B450 TVs support side by side ?
- checkerboard, horizontal interleaved, and vertical interleaved formats, VESA 1360x760 60Hz mode only. C7000 series
do seem to allow 3D in all supported VESA modes; all the above formats with the addition of side-by-side (half) and top-bottom (half) formats