Luckily, both series were released in full in England on VHS. These would provide superior sources to any off-air recording (and no station logos).
They would be in PAL, of course, but some enterprising OT-er could probably convert them.
I happen to have all the tapes (see signature), but am not prepared to put in the time to transfer them all. Maybe if I provided the raw captures, someone else would team up with me for the clean-up and authoring?
Anyone?