[Shoeless Moe]

I believe CBS was located in the Earle Building and the Big Train did some announcing for CBS, so that may explain it.

https://www.loc.gov/static/programs/...ments/WJSV.pdf

Since the WJSV was now a CBS O&O (owned and operated), the majority of programs carried
over its air were CBS-produced fodder including its midday and afternoon slate of soap operas
and its evening comedies and variety efforts. The station would also move its broadcast facility
from Virginia into Washington, DC, proper, into the Earle Building located at the corner of 13th
and E Street in downtown DC.

Music, sports and comedy fill much of the afternoon schedule. “Rhythm and Romance” offers
soft swing before the afternoon game between the Cleveland Indians and the Washington
Senators is joined in progress in the 4th inning. It’s the last game of the season. It’s also “Lady’s
Day” in the park and, as noted by the announcer, several of the “fairer sex” are seated in the
stands. Former Senators pitcher and later Baseball Hall of Famer Walter Johnson provides some
of the game’s play-by-play.