Due to their low transmission power (~1kW ERP), KETS-DT ch 5 suffers from impulse noise interference in the heat of the day. Mornings & nights it possibly gets co-channel interference from WMC-5 in Memphis and KFSM-5 in Ft Smith. All of this causes frequent interruptions in audio and video. IMO, lowband VHF should be abandonded for digital TV broadcasting.
KETS-DT simulcasts four 480i subchannels of PBS programming.
2-1 is the same as analog channel 2.
2-2 thru 2-4 are various & sundry PBS programs, with 2-3 & 2-4 usually being childrens' programs like Sesame St. , etc.
When interference isn't plaguing the broadcast, the overcompression of 4 subchannels is, causing a pixelated mess during high action scenes.
IMO, KETS-DT is not worth adding a VHF antenna to receive them.
Reception is futile.....