Berta was originally to appear in this episode only, but everyone loved the character so she became a recurring guest for the remainder of the season and then a series regular, starting with season two.
First appearance of Berta.
Rose identifies the address of Steven Tyler (lead singer of Aerosmith), who actually does live in Malibu, as 4456 Malibu Canyon Road. 4456 Malibu Canyon Road is the parking lot of (City Of) Malibu Bluffs Park.
Toward the end of the episode, the tune Charlie plays on the piano when Rose returns from her attempted date with (R)Andy is from another NBC hit sitcom: ["link=tt0103484"]. [Edit #1]: "Two and a Half Men" aired on CBS, not NBC. [Edit #2]: Although the piano melody played here is similar to the "Mad About You" theme, it is highly doubtful the production would pay the licensing fee required for such an inconsequential scene.
Rose, Kandi and Berta's last names are never revealed. The main surnames are Harper and Melnick.