Dean Martin, Johnny Mathis, Betty Walker, Peter Lind Hayes and Mary Healy The Perry Como Show : Season 10 Episode 9
NBC 1h 00m int(0)
Aired: November 9th, 1957 @ 9:00 PM EST on NBC
Dean Martin appeared as a guest by remote. Each was doing his own TV show live simultaneously on different networks, and a split screen was used. They chatted and sang Oh Marie.