Hello, the remote has quit working for the volume

Which code? For the Universal Remote? If so, it has a scanning function on it.

There are a lot of possible RCA TV codes programmed into the DTA800B1 remote.
Try the following three digit codes: RCA 000, 001, 005, 072, 073, 074, 075, 076, 077, 078, 135,
138, 140, 144, 150, 156, 159, 162, 163, 169, 171, 178, 229, 246, 249, 260, 274, 275, 293, 302 in order.

To program the remote. Turn on your TV manually and press PGM (to the left of the zero in the number pad section). The LED should light and stay lit. Type in the first 3 digit code and press OK (in the center of the arrow keys near the top). See if the gray volume up/down keys work to change the volume. If it doesn't work press PGM again and enter the next code.

Note that the converter box remote will only turn on and off, switch the input from Channel 3 or 4 to AV in, adjust the volume and mute the TV. It will not control any of the DVD functions. Your original TV remote will not control the converter box.

The manual for the DTA800B1 is available here: http://www.1800customersupport.com/productdocuments/DTA800B1_RCA.pdf .

I hope this helps.

Cindy Wells
(who has the DTA800A which is the model without the analog pass-through.)

Yes that is correct.

I located the list of TV Codes and was able to program my TV with my RCA Universal Remote. Thank you for your concern.

Good day,
I might be missing something, but you are describing a converter box that converts digital signals from an antenna to analog.
The converter box will be set to channel 3, and you should set your tv's to channel 3 as well.
Using the remotes that came with the tv's go into setup and if available as an option, you will find an option to select cable/antenna or automatic. Select automatic or antenna and save. If there is a selector switch on the back of the tv's, set to 3.

Connect antenna cable into input, and use supplied cable to connect from the output of the converter to your tv.

plug in power supply for converter box, tune tv to channel 3 then follow instructions to setup converter box including channel scan.
When done, the converter remote will control everything. However, the tv volume control will work even though the converter remote will have volume as well. The tv remote as well is needed to shut off or turn on tv. These functions can on most tv's be performed on the set as well.

No codes are required. The converter remote will work on any tv.

If you want to use both tv's then you will need a splitter on the output of the converter to send the signal to both tv's. Only one channel can be viewed at a time.

Viewing separate Chanel's requires a second converter box and a splitter connected to the antenna cable for viewing separate channels.

More options are possible, but I hope this helps you get started.
The converter box takes place of the tv's tuner and in essence disables it.

You must set the code to conect your tv to your remote. The instructions are in your manual with a list of codes.

Be sure that your TV is set to channel 3 or 4 if you are using the RF cable or Video 1, etc if using the Audio/Video cable.  The Installation  Guide should appear.  The "improved" picture that you are seeing is simply the analog throughput, not the digital conversion.

This set is not digital tuning and you would need a converter for off-the-air reception. You can get full specs and manual downloads from RCA's site:

http://tv.rca.com/en-us/productdownloads.html?MN=32V432T

What brand is your digital converter box? Samsung

It does appear that universal remotes made before these boxes existed accept pre-existing codes.

Here is the Radioshack FAQ for Digital TV converters that they sell:
http://dostuff.radioshack.com/files/DTVConverterFAQs.pdf