I sent an email message to the contact address it gave asking for a list of pbs stations they knew of that were planning to air the documentary and got the following reply from their PR person:
"If you go to the whyquiltsmatter facebook page we post what we are sure of there. Otherwise you have to go to your local station for listing info. Stations only post a month ahead so you will not see any future airings anywhere. Thanks for your email.. The DVD contains a number of wonderful Extras that will not appear on TV airings by the way. "