Primetime Rundown: What to watch Day 4 at Tokyo Olympics
![Primetime Rundown: What to watch Day 4 at Tokyo Olympics](https://ktvz.b-cdn.net/2021/07/oly20_xx_1671_newsdeskcomcast_ce_210726-1440x811.jpg)
NBC Olympics
Day 4 of the Tokyo Olympic Games is set to feature Summer Rappaport in the women’s triathlon, big nights for Ryan Murphy and Lilly King in the pool as they look to repeat, medals on the line in men’s diving and more.