No. There must be at least 20+ perfectly straight horizontal lines, from the top to the bottom of the screen. It's much more noticeable on the 4-5 y/o 27" TV than on the 13 y/o 20" TV. But the 27" TV is connected to the coax cable that has the lower signal quality.
A few days ago, the 27" TV had these vertical waves in it. They had been there for three weeks or so. Now they seem to be gone and the horizontal lines are there.
I'm going to ask about this problem in a TV forum. I just thought maybe it was cable related because it started occurring on two TVs around the same time. Combine that with the dialogue and video being out of sync, plus the vertical waves, it sounds like a cable problem.