Sometimes you strike gold. That's an article from 1996 on David Miller (aka David Miller Music), a KTVK employee who apparently wrote the themes the station debuted in 1995:
"Miller's Channel 3 playlist includes theme songs for Good Morning Arizona (sung by local country entertainer Ray Herndon), Good Evening Arizona (sung by Molly Molten, a former Channel 3 correspondent) and the new Tonight Arizona (sung by Los Angeles-based studio pro Mark Campbell). Yet the composer calls Channel 3's longtime promotional theme, Arizona's Family, "by far the most important I've ever written. That song is about everybody I work with, and it really means something to me," said Miller, whose father, Bill, is Channel 3's general manager."
He also did graphic design work for the stations. Apparently the KTVK circle 3 was known around the station as the "meatball".
KASW is explicitly mentioned and I'm led to think the NewsNight theme (1995-97) is from him too. He's now a partner in MagicDust Television, the producer of RightThisMinute and worthy of the title "spiritual successor to KTVK's glory days".