I can't get my DVD to play on my GE 25GT240 25" TV

You need an RF modulator and the proper cable(s) so that the DVD player can connect to the old TV coax input. See this video for the procedure.
TVs DVD Players How to Hook Up DVD Player to TV Having Only One RF or...

I’m happy to help further over the phone at https://www.6ya.com/expert/donald_f2ed37026a3ac881

How to hookup TV

If you have a TV with only a single coax input and you want to hook up components like DVD players and VCRs, here's how to do it.



What you need to connect your DVD player or game players to a TV that only has a VHF/UHF 75-ohm F-connector ("coax antenna input").

1.) RF Modulator with Stereo Audio Inputs.



2.) 6 foot long coaxial cable with male "F" connectors. This cable goes from the modulator to the TV. The modulator also has a coaxial input to plug in your antenna or your VCR.



3.) 6 foot long Video and Audio Cables with "RCA" plugs. The cables connect the yellow, red and white outputs from your DVD or game player to the yellow, red and white inputs of the modulator.





Works with X-Box, PlayStation, Nintendo or other devices that output audio/video via the RCA plugs and you want to connect them to your coaxial only TV.

Leave the cable box powered on but disconnected from the TV or VCR. All other components should be disconnected and unplugged, giving clear and easy access to all connections. If components sit in an entertainment unit, make sure all A/V cables can reach the RF modulator and the cable from the modulator can easily reach the television.

Step 2 Hookup the first coaxial cable from cable box output, usually labeled "TV," "TV out" or "Out to TV" to the cable "In" on the VCR. Connect the second coaxial cable from the VCR's out to "TV" to the coaxial input on the RF Modulator.

Step 3 Connect the third coax cable from the coaxial cable "Out" jack on the RF Modulator to the coax cable "Input" on the television.

Step 4 Take one A/V cable, connect the red (right audio channel,) white (left audio channel) and yellow (video) from DVD player's "Output," to the corresponding DVD "inputs" on the RF Modulator. Place components as desired but still disconnected from power. Plug in all power cables including the RF Modulator's into the surge protected outlet strip.

Step 5 Make sure the Channel select switch usually found on the back of the VCR and the Channel select switch on the RF Modulator are both set to Channel 3. This channel is used on the television to view your components.

Step 6 Turn on the power strip and turn on the TV. Cable reception should come on as usual. Set the TV to Channel 3 and turn on the VCR. With VCR on test it by playing a video tape. The RF Modulator should sense the signal and automatically switch to "VCR."

Step 7 Switch off the VCR and with the television still on channel 3, turn on the DVD player. As the RF Modulator senses the DVD player signal and switches to DVD, its welcome screen should be seen on the television. Play a DVD to test and once you're done with the DVD turn it off and the cable should come back on.

Newer directv hd receivers must connect to the av input (yellow,red, white) connections on the back/front/side of your tv. If your tv only has one of these av inputs then you will need an RF modulator for your dvd player. You will connect the (yellow,red, white) connections from the dvd player to the rf modulator and then connect the tv out on the rf modulator to the tv rf jack ( the silver threaded barrel on the back of the tv) Tune your tv to channel 3 to watch a dvd and then back to the av input channel for the directv receiver.

It took some time, but I finally have this figured it out so everything works.

I have the same setup, but I had one additional piece to the puzzle that I had to figure out. I have an older TV and use and antenna, but had to buy an Audio/Video RF Modulator a couple of years ago to use my VCR & DVD player with the old setup.

Get yourself an Audio/Vido RF Modulator (you can pick one up for about $20-30).
Connect the TV to the RF Modulator.
You should have 2 connectors for your antenna. Connect one to the converter "To Ant" and the other to the RF Modulator.
Connect the convertor A/V cable to "IN" on your VCR.
Connect the cable from converter "To TV (RF)" to "UHF/VHF from Ant" on VCR.
Connect the VCR "OUT" cable to the RF Modulator.
Connect DVD A/V cables to A/V input on VCR.

Your TV should be set to Channel 3 (or 4, depending on your setup) and depending on your "input" connections, you should be able to view vidoes from VCR like this and DVD by changing the input (the button should be on your VCR or other remote). For ex. my input changes on my VCR from channels, to L1 & L2. My converter & VCR play on L1 and DVD's play when I change it to L2.

Now, I just have to figure out how to add the converter box to my universal remote. :)
Good luck!

You need to go get an RF modulator. They can be purchased at Radio Shack or a number of other electronic shoppes for a reasonable price.

The RF modulator connects to the coax cable connector and it has inputs for the RCA connectors.

Cheers ... Best wishes

instead of plugging in the rf modulator before the cable box, i plugged it in after it

What type of Inputs do you have on your TV. (ANT IN, S-Videio, RCA Video,RCA Audio)

If you only have a ANT In or RF Coaxial hook up you will need a RF Modulator

The RF modulator probably had a red, white, yellow trio of RCA jacks (A/V jacks), a coax jack marked "antenna" and another coax jack marked "TV"

Putting the DVD output to the A/V jacks allowed it to play out to the TV, which couldn't otherwise accept the DVD player.

The satellite box probably has coax and a/v jacks as output. Use the coax as output to the antenna input of the RF modulator, and the A/V jacks of the DVD player to the A/V jacks of the RF modulator. Hopefully the modulator allows the A/V jacks to have priority over the coax input, so that when the DVD plays it "wins"

The RF modulator changes the outputs from RCA (red, white, and yellow) to a Coaxial Cable (COAX).

You connect the DVD players RCA outputs to the RCA Inputs on the RF Modulator, then connect the COAX Output from the RF Modulator to the television.




Best of Luck.