On a Roku TV such as the TCL 5-Series S555, antenna channels live in their own corner of the home screen, and many complaints about missing channels are really about how Roku handles them. After you plug the antenna into the RF jack, press Home, find the Antenna TV tile, and let it run Set up antenna TV. The scan builds a list that the Live TV Channel Guide then shows alongside streaming channels. Scans only find what the antenna hears at that moment, so a short list means a weak position, not a broken tuner.
The checks in more detail
Go to Settings, TV inputs, Antenna TV, and choose Check signal strength: the screen shows a meter for a channel while you move the antenna, which is the quickest way to learn which window or shelf works best. Rescan after each change. Roku adds some handy extras that people overlook. Live TV Pause lets you pause and rewind an antenna channel for up to ninety minutes if you connect a USB drive of 16 gigabytes or more, formatted by the TV, to the TV's USB port; without the drive, pausing is not available.
In Settings, TV inputs, Antenna TV, Manage channels lets you hide channels you never watch, so a channel that seems missing from the guide may have been hidden, and you can unhide it there. The Live TV Channel Guide combines antenna listings with streaming channels that Roku offers free, so a guide that looks odd may include them; in the guide's options you can choose to show only antenna channels. If channels disappear overnight, it is often because a station changed frequency, so run the scan again.
Use a short, well-made cable, remove any amplifier while testing, and keep the antenna away from the TV and router. A scan that stalls at a low percentage may need a restart of the TV by unplugging it for a minute. If a channel breaks up only at certain times, the cause is usually signal strength and weather, and moving the antenna improves it. Keep the TV's software up to date from Settings, System, System update. If the tuner finds nothing with an antenna that works on another TV, contact TCL with the model number.
Differential
Likely causes of “TCL 5-Series Roku TV S555 cannot find antenna channels”, and how to tell them apart
- 1
A short first scan
What separates it The Antenna TV tile lists only a handful of stations
How to confirm Reposition and run Set up antenna TV again
- 2
Channels hidden from the guide
What separates it A station you know exists is absent from the list
How to confirm Open Manage channels and unhide it
- 3
A station that changed frequency
What separates it A channel that worked last month is gone
How to confirm Rescan from the Antenna TV settings
- 4
No USB drive for Live TV Pause
What separates it The pause and rewind options are missing
How to confirm Connect a 16 GB or larger drive and let the TV format it
- 5
A stalled scan
What separates it The scan stops at a low percentage
How to confirm Unplug the TV for a minute and run it again
Before you touch a setting
Record this first — changing settings destroys the evidence
- How many stations the Roku scan found
- Whether Manage channels hides any
- Whether a USB drive is connected
- The reading on Check signal strength
Try in this order
0 of 6 completedOpen the Antenna TV tile
ReversibleRun Set up antenna TV.
Use Check signal strength
ReversibleWhile you move the antenna.
Open Manage channels
ReversibleUnhide anything missing.
Add a USB drive
ReversibleFor Live TV Pause.
Rescan after moves
ReversibleOr when a station vanishes.
Update the TV
ReversibleIn System update.
Model-specific
What is true of this model and not of its siblings
- Roku guide
- It mixes antenna and free streaming channels.
- USB drive
- The TV formats it for pausing.
Stop boundary
When this stops being a self-service repair
- !If a scan finds nothing with an antenna that works on another TV, contact TCL with the model number
- !If the Antenna TV tile is missing, update the TV first
- !Keep the receipt for warranty
Evidence ledger
Sources behind this answer
Exact questions
Common questions
Where do antenna channels appear on a Roku TV?+
Under the Antenna TV tile and in the Live TV Channel Guide.
Can I pause live TV?+
Yes, with a 16 GB or larger USB drive connected.
Why is a channel missing from the guide?+
It may be hidden in Manage channels.
How do I see the signal strength?+
Settings, TV inputs, Antenna TV, Check signal strength.