You can watch the SOTUA (State of the Union Address) on TV as meany of the National news stations will be televising it live, but if you do not have cable or satellite service you can watch it live via https://wh.gov/sotu.
Who will be in the box with Dr. Jill Biden, First lady of the United States? You can as the White House has announced the guest. See here https://www.whitehouse.gov/briefing-room/statements-releases/2022/03/01/the-white-house-announces-guest-list-for-the-first-ladys-box-for-2022-state-of-the-union-address.