What Do You Argue About?

So this evening Schmoopie and I got into a debate about the Lawrence Welk Show, which was precipitated by the fact that one of our two PBS stations here still insists on playing it. I was asking whether or not they were still making these things, or if they were all reruns, and the answer was a little bit in between. Turns out they recorded some newer intros and segue material for the same old surreal shlock.
And while on the subject, let me say that these people are spooky as all hell, and apparently soulless. Whereas I may be 28% white and nerdy, these people are off the charts- but that's not really the point. The question at hand is what far fetched and bizarre things have you argued about? I'm thinking that arguing over the Lawrence Welk Show is among the more ridiculous.
As an aside, what the hell are the PBS people trying to do? With the ability to show solid, good quality shows, either domestic (such as Nova) or foreign (such as the plentiful BBC comedies), why in the hell would they air Lawrence Welk? I mean seriously, who watches this and how could it be of "public" interest? I could only bear about 5 minutes of it, and I was feeling incontinent. Schmoopie was begging me to change the channel while the debate was still underway. Remarkable.