Around the remote: Chuck Barney's TV picks for July 31-Aug. 6

DON'T MISS: Summer Olympics opening ceremony - Are you ready for some pomp and pageantry? Athletes from more than 200 countries are expected to compete over 17 days (Aug. 5-21) in the Rio games. But first comes what is expected to be a very festive celebration and the lighting of the cauldron. Ushering viewers through it all will be Matt Lauer, Meredith Vieira and Hoda Kotb. 7 p.m. Friday, NBC. …