If memory serves, it is pretty close to non-progressive scan DVD, except it isn't digital.
On a projection tv in the late seventies and early 80's even, tape didn't come close.
Tape has never been an acceptable pre-recorded medium to me, even in 1970 when I was the only guy I knew who had cassette in my car - all home recorded tapes.
And this in a crappy 1963 rambler classic!!!
I still prefer laserdisc for "instant accessibility" (no stupid menus to select chapters; no "Easter Egg" features), 50k+ frame image discs (for example art collections or NASA photos, as well as several hundred production still collections for a given film).
Animation transferred to CAV at true "1 frame" freeze frame capability.
Fast foward motion on a CAV disc was truly an accelerated version (forward or reverse) as every single frame was displayed, none of this "CD like" skipping ahead.
And although the resolution may have been "lesser" there is no compression artifacting. DVD has improved in this regard but some companies still fall short in their DVD production.
"except it isn't digital."
You mean video isn't digital but the LD format does offer digital audio.
Broadcast NTSC TV used 440 for broadcast while NTSC Laser Disc had 565. In practical usage, broadcast was about 400 and Laser Disc about 500.
I have about 600 Laser Discs. I bought out a rental company when they went out of business.