If you live in Las Vegas you will need to rescan.
Something totally weird. After my latest move last June/July, I lost the ability to get a few OTA networks (NBC, FOX, PBS & The CW) because those towers are behind a mountain. After I saw this post, I did a rescan and picked up The CW… antenna search sites still say it’s located where it was, but it’s showing 5 Green dots, and the video quality is perfect, as I’m getting with ABC and CBS. Anyway, it’s nice to pick up a channel I had previously lost.