In 1978 it's first logo first appear in Wall Street Week. It was called "This Station and other Public Television Stations Nationwide".
Viewers Like You has its second logo that appears in 1991 until 1999, but it was still called "the financial support of/from/by Viewers Like You", but in 1993, it was called "the annual financial support of/from/by Viewers Like You", then in 1997, it was called "the annual financial support of/from/by PBS Viewers Like You". They didn't add "Thank You" until 1999 (except for The Mark Russel Comedy Special in 1991).
Viewers Like You also have a third logo, and it was called "contributions to your PBS station from Viewers Like You", and it also has a "Thank you".