Yeah I could too, but this is comparing apples to Philips screws. I mean, Doctor Who was originally - all through its "classic" incarnation - aimed at kids and really seen as a bit of fun, nothing serious, nothing adults would watch. BBC production values for shows such as this have were always bad in the twentieth century - look at Blake's Seven or even their version of The Tripods, or The Tomorrow People. Brits just never did science fiction well, not on TV. America, totally different story. Never mind TNG: TOS's production values, effects, acting, stories, costumes and just about any other aspect would knock classic Who, or any British science fiction show of the time into a hat, cocked or not, your choice.
Consider the budget difference too. Season one of Doctor Who was budgeted at approx £2,000 per episode. Even allowing for a tenfold increase by the time it ended (unlikely, but let's assume) that's £20,000 per episode. TNG, on the other hand, kicked off with a cool one million dollars per episode! So if our figures were right (and they probably aren't; probably much lower, as the BBC were never known for pouring money into their shows) then one episode of TNG could pay for the entire series, or close to it. No wonder TNG looked so much better.
Also TNG was aimed at adults, with adult storylines, premises and had some pretty top guest stars. Doctor Who, well, didn't. It was stupid and unfair of the BBC to look at TNG and think, we can't compete. You might as well envisage something like the makers of the Sopwith Camel or the Spitfire looking at a Tornado jet and saying ah here, we give up. Idiots.