MeTV does not carry any HD programming. I don't know about the others, but KVOS (Seattle/Bellingham) is 480i/MPEG4 on Directv.
MeTV here in the LA market is on both local KVME-20 via fiber or microwave feed to DIRECTV which broadcast it as MPEG-2 SD from a 101 SB. But not KVME off-air.
Its also carried off-air only from local KDOC-56 on their secondary SD sub-channel 56-3.
Either way though its in 4:3 center-cut SD.