Debate: Georgia Public Service Comission candidates this afternoon on GBP

Rumor is that, like last weekend, the incumbents won't show up for this afternoon's Public Service Commission debates, this time on Georgia Public Television.

GPB does still list them as "invited", with this schedule for today, Sunday 22 July 2012:

Date and TimeDebateInvited Candidates
Sunday, July 22 at 4:30 pm Public Service Commission District 3 Republican Chuck Eaton and Matt Reid
Sunday, July 22 at 5 pm Public Service Commission, District 5 – Republican Pam Davidson and Stan Wise

If the incumbents don't bother to show up, how responsive to the people are they?