Before NBC opened its famous at the northeast corner of Sunset Blvd and Vine St in Hollywood, its home was in this building at 5515 Melrose Ave, near Gower St and Paramount Studios. It opened on Wednesday December 25, 1935, which I found to be an odd date. It guess NBC Radio personnel worked on Christmas day that year. At any rate, the very quickly found that the premises were way too small, and so almost immediately began drawing up plans for much larger premises on the stretch of land that used to house the Famous Players-Lasky Studios.

The building is still there. This image is from February 2021: