Looks like KPBS has changed their sub channel assignments, dropping V-me. The PSIP data now indicates 15.1 (KPBS-HD), 15.2 (KPBSHD2), 15.3 (CREATE), and 15.4 (PBSKIDS). As a result, their HD sub channel (15.1) has also changed from 1080i to 720p.
The KPBS website has TV listings for KPBS-HD...