I know that in some households, the children dictate what is watched, but we were limited when we were allowed to watch TV and what we watched. In the evenings, it was my parents choice (well, my moms) and no arguments!
And yes, we watched Lawrence Welk every Sunday on PBS (I think it came on at seven?), it was one of the highlights of my weekend. My little brother would do his cute little dances in his footed pajamas, and sometimes my mom would pop popcorn. If that happened we had to open all the windows because my dad is allergic. That's right. ALLERGIC TO EVEN THE SCENT OF POPCORN. So we didn't have that too often.