Over the Air Antenna

The longer the run from the antenna to the TV can reduce signal strength. Additionally, there is a splitter somewhere in the line (usually near the wall mounted power supply (the one with the little push button or slide switch) that can be bad or have a loose connection. Sometimes the wall plate itself is the splitter and these can go bad as well.

Are they the same brand and model TV? Some TVs have a better tuner than others and will need less signal strength to find them.

I had this issue on my 5th Wheel and it was a bad crimp and wired wrong at the TV distribution block. Mine was located near the rear TV and it was on the amplifier where the connection was hooked up wrong.

Bad connectors and/or splitters. Personally, I only use "Snap-N-Seal" connectors on RG6 cable. For many years These were the "industry standard" for cable installers.

Also, if you need an amplifier, uses what the professionals use. PCT Amplifiers

Back in the olden days I was a cable TV installer. We found that over 80% of the service calls we rolled on were failed connectors. The majority of those failed due to incorrect installation.

I would suggest swapping front & back TV's and see if the problem follows the TV or stays at the back TV. That will tell you if it is the TV or a cable/connector problem.

Many posibile causes. Some addressed above (bad cable connection generally the crinmp on sneeze off connectors. Fail to tighten a connector properly some idiot drove a staple THROUGH teh coax (yes it happens)(

Some TV's are just naturally better receivers.

And a host of other things Bad Splitter (The wall plate or the box of many buttons) is also on the list.

wildtoad wrote:
Are they the same brand and model TV? Some TVs have a better tuner than others and will need less signal strength to find them.

This is what we found.

Our MH came with, at the time, highly rated and high priced Viewsonic brand TVs. I installed a cheap Visio for the outside. The cheap Visio pulls in a lot more channels than the Viewsonics. Both of the Viewsonics get the same channels so I'm thinking it's all in the TVs.

All my TV’s get the same stations, different brands. I’m guessing tou’ve Got a poor connection somewhere!

dodge guy wrote:
All my TV’s get the same stations, different brands. I’m guessing tou’ve Got a poor connection somewhere!

Your results have nothing to do with the results others experience. There are MANY reasons why one TV get more channels than another. Thanks for adding "I'm guessing" as a point of clarification.

Get a long test cable and connect it to your source, cable or over the air source.

Now connect directly to each tv one at a time and rescan. If you get different results and they are only a bit difference then as mentioned you just have more horse power with one tv receiver. If however you have a substantial difference then the weak one is probably do for an upgrade.

If anyone here decides to buy new televisions for the RV's be sure to find one with a built in OTAR receiver. I found my fancy new larger screen tv does not have one and I had to add another box. So that means a different remote of course and another INPUT change when switching to that box.

I didn't make the same mistake when I bought the new tv for the bedroom. It has the receiver built in and works great. It is amazing how many functions these new Visio televisions with 4K have.