The logo design for the show's title (the uppercase word "GO" with the O tilted 45 degrees away from the G, and the uppercase word "ON" directly below "GO") is a reference to Robert Indiana's iconic Pop Art-era "LOVE" artwork. Indiana first designed this artwork in 1965 as a Christmas card for New York's Museum of Modern Art, Indiana has reconfigured the design in many formats (including prints, postage stamps, and sculptures) and languages (including Hebrew and Chinese).
The name of the radio station Ryan works for is KBAL. There is no radio station on the air with those call letters, though there was a Texas based KBAL as recently as 2009. A long time Baltimore radio (and TV) station uses the call letters WBAL.