On the other hand there's very little Doctor Who that isn't dated, slow-paced, occasionally awkward, and severely hamstrung by production constraints. On that level I'd feel the need to offer a few pre-emptive excuses to anyone I was holding it up to!

I think that holds for most TV - not just Who. The problem genre TV has is the dependence on effects - which will always date stuff (take TNG for example - it looks terribly dated now - slick admittedly, but it screams late-80s/early-90s in the same way that a lot of Who and Blake's 7 scream 70s).