Roku TV Tuner Secret Screen

Here’s how to display it:

Once you’re on your Roku TV’s home screen, grab your remote and press:

[Home, Home, Home, Home, Home, up, right, down, up, left, right]

very fast.

You should then see a screen similar to this one:

Let’s breakdown what some of this means:

Total: 97

For this particular TV, 97 channels were saved during the last channel scan.

chan: [ATSC:6.1 @30=569.00MHz]

The channel that this TV is tuned to is an ATSC 1.0 channel with a virtual channel number of 6.1. The RF (physical) channel is 30, which is centered at 569.00MHz (RF OTA channel 30 is 566-572 MHz).

name: WTVJ

The name of this channel is WTVJ.

pgm:3

RF-ProgramID is used to differentiate between different programs that are broadcast simultaneously on the same 6MHz RF channel. Each program is assigned a unique RF-ProgramID, which is transmitted in the Program and System Information Protocol (PSIP) data that is broadcast along with the program content. This channel’s RF-ProgramID is 30.3 (RF channel # + pgm # in the tenths place).

RF Info: 56% (-54 dBm)

The signal strength coming in from this particular RF channel is -54dBm, which is conveyed as 56%.

MER:25.2 dB

MER, or Modulation Error Ratio, is a measure used to quantify the performance of a signal using digital modulation. The modulation error ratio is equal to the ratio of the RMS power, in Watts, of the reference vector to the power, in Watts, of the error. For this particular channel, the MER is 25.2 dB.

BER:0.00E+00

The BER, or Bit Error Rate, will be expressed in scientific notation. In this case the BER was 0.

RSSI:-54

RSSI, or Received Signal Strength Indicator, is the same as the signal strength coming in, which is -54 dBm.

TV Time: UTC 03/31/2023 01:30

The current time in UTC (Universal Coordinated Time) and date information is sent in the over-the-air TV broadcast. It happened to be 1:30 am on 03/31/2023 UTC in this picture. This is the equivalent of 9:30pm 3/30/2023 EST. Date and time information is a part of the Program and System Information Protocol (PSIP) data in ATSC 1.0 broadcasts.

Tuner Standard: ATSC

This is an ATSC 1.0 broadcast.