Is KHBB-LD (ABC 21) on NextGen TV?

ABC · channel 21 · Helena, MT (Helena market)

No. KHBB-LD broadcasts only the current (ATSC 1.0) signal that every digital TV can receive. There is no NextGen TV filing for it on record with the FCC.

Source: FCC licensing records, checked October 31, 2026.

KHBB-LD at a glance

Channel on your TV
21
Real (RF) broadcast channel
21 · UHF
Network
ABC · FOX on 21.2
City of license
Helena, MT
TV market
Helena (#206)
License type
Low-power
NextGen TV (ATSC 3.0)
No
Old-format (1.0) signal
On its own transmitter
FCC facility ID
34413

Questions about KHBB-LD

Is KHBB-LD broadcasting in ATSC 3.0 (NextGen TV)?

No. KHBB-LD broadcasts only the current (ATSC 1.0) signal that every digital TV can receive. There is no NextGen TV filing for it on record with the FCC.

Will KHBB-LD stop working on my TV?

Low-power stations play by different rules. They can already switch to NextGen TV whenever they choose, with no requirement to keep an old-format signal — and the broadcasters' proposed shutoff dates don't cover them. KHBB-LD hasn't filed to do so.

Why can't I get channel 21?

Start with a full channel rescan (Settings → Channels → Auto scan) — stations change transmitters and frequencies more often than people expect. KHBB-LD transmits on real (RF) channel 21, which is UHF. UHF (channels 14–36) is what most indoor antennas are designed for. Reception problems on UHF are usually about distance, walls, or line of sight to the tower — try a window facing the transmitter.

Why channels disappear → · Where the FCC decision stands → · Does my TV have a 3.0 tuner? →

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Other stations in Helena

Full Helena station list and shutoff timeline →