Amanda McBroom here performs two songs: "If You Only Have Love" and "Happy Song". Amanda is most famous for being the lyricist who wrote "The Rose", which was itself made famous by Bette Midler.
Amanda McBroom's song "If You Only Have Love" would later resurface as "If We Only Have Love" in Angels on Ice (1977), sung by someone else.
Certain themes recurred across many TV shows in the '70s. Certain amusing scenes were often recreated. Lieutenant Columbo would, 4 years later, reenact Tony Blake's Scheherazade scene in Try and Catch Me (1977), as he, himself, also steps foot into a belly dance studio, and proceeds to amusedly gawk at their scantily clad dancers.
Tony sports an early digital watch where the user presses a button to display the time in red LED numbers. This was a high tech consumer electronic at the time the show was made.
The helicopter (N40MC 1970 Bell 206B JetRanger II s/n 563) is seen in several other TV series and movies. Its latest registration is with the Leon County Sheriff's department in Florida.