Stage Show was broadcast live from CBS Studio 50 in New York, the same studio that housed The Ed Sullivan Show.
Notes on verification
Corroborated by multiple independent sources including Wikipedia, Elvis history sites, and Ed Sullivan Show historical archives, all confirming both Stage Show's broadcast location and its coincidence with Ed Sullivan's studio. [cascade flags: wikipedia_dropped_other_sources_exist | tier=bronze indep_score=0.525 clusters=4 claim_tier=notable | kind=empirical eligibility=high]
Sources
- Elvis Presley on TV: 10 Unforgettable Broadcasts (seed:comedy_and_entertainment)
- https://www.elvis.com.au/presley/elvis-presleys-national-tv-appearances-in-the-1950s.shtml (corroboration)
- https://www.elvispresleymusic.com.au/pictures/1956-january-28.html (corroboration)
- https://eyesofageneration.com/elvis-presleys-television-debut-the-dorsey-brothers-stage-showmost-think/ (corroboration)
- https://www.edsullivan.com/ed-sullivan-theater/ (corroboration)