Who sells Roman music?

After "Tai Siu Jan Jyuan", TV theme songs became an important part of Hong Kong music. From the 1970s to the 1990s, many popular Cantonese songs were TV theme songs. Usually the theme songs are written in classical Chinese for programs with an ancient historical setting, and in colloquial Cantonese for programs based on modern life. One of the most well-known theme song stars was Roman Tam (羅文), whose singing earned much praise.