<P> The main title theme for the series was scored by Mark Snow . </P> <P> Fashion and jewelry designer Nolan Miller, who later designed the clothes for Dynasty, was the costume designer for show . </P> <P> The ranch - style house used for exterior filming was previously owned by actors Dick Powell and his wife, June Allyson . Powell was an old friend of both Robert Wagner and Aaron Spelling . The actual estate, known as Amber Hills, is situated on 48 acres in the Mandeville Canyon section of Brentwood, Los Angeles . In the series, the Harts' address is given as 3100 Willow Pond Road, Bel Air: the real address of the house is 3100 Mandeville Canyon Road . </P> <Ul> <Li> Season 1 (1979--80): Not in the Top 30 </Li> <Li> Season 2 (1980--81): #23 (15.9 million viewers) </Li> <Li> Season 3 (1981--82): #15 (17.1 million viewers) </Li> <Li> Season 4 (1982--83): #17 (15.7 million viewers) </Li> <Li> Season 5 (1983--84): #41 </Li> </Ul>

Where is located the house of the hart to hart