I quite enjoyed it - like others, I do find it interesting when the lines go further back than the last few generations, even if it does all then turn out to be "Ag Lab" with trimmings. After all, most of us seem to trickle back to the early 1800s on most lines fairly easily, with help of parish records and censuses, without all the professional help that WDYTYA? has.
Like you, a few - the Dyer one (forgot his first name) the Whitehall double act, Ann Reid - had made me swear never to watch it again, but ... we can't resist, can we?
TY