Career
Cannon worked at WTAE-television from 1969 to 1994. Later, he was teamed with Sally Wiggin. In 1999, he returned to Pittsburgh and worked for KDKA-television, after having worked for KDKA"s sister station, KYW-television in Philadelphia from 1995 to 1998 (while there, he was credited as Don Clark, as a radio personality in the city was also named Don Cannon).
He left that position in 2007.
He had well-publicized battles with alcoholism and depression. In 2009, he was arrested in California for failure to report for sentencing in two separate cases of driving under the influence dating back to 2007.
After then being returned to the Pittsburgh area, in April 2010 he was jailed for violating a no-drinking clause in his probation.