When Paramount paid to put out the Director's cut of TMP I was really hoping they would revisit Star Trek V because up until they get to Godworld it's a return to what I liked about the OS to a large extent.
The special effects need redoing (they were done in haste on the cheap and it shows) and the end of the film needs a major redo but there is a lot in there worth saving.
I've always been a fan of Laurence Luckinbill and he turns in a good performance, sadly the usually dependable David Warner doesn't really do much but then he isn't really given much to do.
Some of the comedy could do with a trim to make the best of it work better too, sometimes it's almost a toe-curlingly over done as in The Undiscovered Country but on the whole the main cast are on form.
The comedy Klingon ship could be largely trimmed though I liked the nonchalant way another Voyager probe gets disposed of (a nice comedy bookend to TMP).
TNG had some fine moments but it's largely a soap with a techo-babble B plot of the week.
Ye Gods the incidental music of Star Trek spin off shows are awful and intrusive too.
TOS had some hard hitting stories written by serious writers and with a darkness that TNG and every other spin off rarely got to grips with (now that one with the bugs living inside people...you know the one where Riker eat the wiggly worms...that was a step in the right direction).
And back when the Cybermen...erm the Borg were scary that was nice.
Tar monster...where are you now?
And that freaky one where the ship started turning into a Mayan temple.