Yeh, which Teks do you have?
Anything TDS or newer is new-management crap. After the numeric (three, four and five digit model numbers) classics, they lost their advantage. Somewhere around there, late 80s or whatever.
What's astonishing is how long they've held their market image. Like, three decades and counting. I can't think of any other market where perceptions are so thoroughly out of sync with the products. I mean, people buy cars, for example, not quite as infrequently as they buy scopes, but everyone knows how bad such-and-such car maker is, almost on a daily basis. Economists should study it, or something.
Obligatory deferral about high end stuff, but... well, for $200,000, they damn well better have something usable (even if it runs Windows 7..). For that much, I wouldn't even fly a tech to your door just to wipe your ass...I'd do it personally!
As for Dave... man, that's an oldie, #13? He's a better show these days (though his voice is just as grating :-p ), try some videos in the hundreds (there's, what, 500-600 to choose from?).
In my opinion, he's generally more gracious than he ought to be: probably, he's weighing price more heavily than I would. Some things that would really annoy me, he doesn't mind so much. I think the most recent example that comes to mind, a Rigol bench supply with the keypad arranged in a circle around the knob, not a square matrix. He commented negatively on it, but didn't really hold it against it. But I think usability, form and style are more important.
Point being, if anything, he's going easy on them. So if he says it's crap, IT'S CRAP! And yes, they literally rebrand Chinese stuff, Tek and Agilent both -- so get a Rigol or Instek or something straightaway. They're relative newcomers, and they work to a price primarily, but their products are always improving. (One example: Dave found a thermal issue in said Rigol PSU; they fixed it and sent out replacement boards to everyone! Another example: the early DS1xxx's used to be pretty clunky, worse even than, like, the TDS1002s and such. Nowadays, they're far better, with modern features basically for free. $400 gets you a lot now!)
Tim