I have my control but i lost the combinatioms and my computer is a sylvania

SOURCE: Sylvania TV does not respond to my my RCA remote control

You can find the remote control codes for different brands of devices from
http://www.hifi-remote.com/ofa/codes-tv.shtml#tv

If none of the codes work then we have two other solutions:

1. Searching For Your Code

If you have tried all of the set-up codes for your brand of equipment ,or your brand is not listed, and you are still not able to get the unit to respond, try the following procedure to search for your code.
If you don't find a code that works, the remote will flash four times when you reach the end of all the codes for this device type.

1. PRESS the button for the device you want to program, (TV, VCR, CABLE, etc.), then RELEASE.
2. PRESS and HOLD the SETUP button until the red LED flashes twice, then RELEASE.
3. ENTER 9-9-1 (two blinks on the remote)
4. ALTERNATE slowly between the POWER key and the DEVICE (TV, VCR, CABLE, etc.) button until your device turns off. (On VCR, LD, and CD players use PLAY instead of POWER)
   Make sure that the remote is pointed at your device during the search, You may have to press this sequences of buttons up to 100 times to search the entire library of codes.
5. When your device turns OFF, PRESS the SETUP button and RELEASE it to lock in the code for your device.

2. Learn the buttons from the original

Line up your original remote and the head-to-head before completing the following steps.

1. PRESS and HOLD the SETUP button until the red LED flashes twice.
2. PRESS 9 - 7 - 5, the red LED will flash twice.
3. PRESS the DEVICE key where you wish to learn the function. The next 3 steps must be completed within 10 seconds.
4. PRESS the button that will receive the learned function, the LED will flash rapidly.
5. PRESS the button on the original remote to be learned.

Now you can repeat steps 3 through 5 to learn other functions onto other keys or press and hold SETUP until the Cinema's red light flashes twice to lock in your new feature. (If the red light does not blink twice, stop and repeat steps through 6).
To test the new feature, press and release the device key in which the new feature was learned followed by the key on which the feature was learned

More help for programming your remote can be found here:
http://www.hifi-remote.com/manuals/ofa-l.shtml?URC-7800#device

Hope that helps! Should you have any further questions, please feel free to post them here.

P.S. - If you find that the solution/answer I provided led you to, or resulted in a fix, please close the ticket with a FixYa! rating. I would be very grateful for your show of appreciation.
If it hasn’t, please do not assign a rating just yet. Please post back as to what steps you took, results, etc, and I will try to assist you further as best I can. I am here at your service.

Thank you for using FIXYA!

Cheers!
IrishDruid

SOURCE: i have a rca312w control and the codes to program my sylvania tv

Try these codes 0054 or 0030

How To Program Your Remote Control

1. Turn device to be programed on.
   
2. On the remote control, press a device key one (e.g., AUD, VCR, TV, or CBL). Press and hold SETUP until the selected mode key blinks twice, then release SETUP.
   
3. Locate the four-digit code found in the list below that corrisponds with the device you are programming then enter that four-digit code. If performed correctly, the selected mode key will blink twice.
   (NOTE:If the selected mode key emits a long blink, the code is invalid. Repeat steps 2 and 3 and try entering the same code again.)
   
4. Aim the remote control at the device ad press POWER once. The device should trun off. If it does not, repeat steps 2 and 3, tryin each code for you brand until you find one that works. If it still does not work, try searching for the code.
5. Repeat steps 1 through 4 for each device you want the remote control to control.

SOURCE: rcr312w universal remote control, I need codes for sylvania tv/vh

Sorry it took so long to respond to you request for help.[ Sylvania TV Code-1251, VCR Code-2154 ] These are the listed code for your model remote control and the Sylvania television and vcr combination unit. I hope this information solves you problem of needing codes to use your remote control with you television and vcr combination unit. Thank you for using FixYa and have a nice day.

SOURCE: codes for sylvania lcd tv

with the tv on press tv button on remote then setup then enter one of the following codes 10171 or 11271 or 11314 the the tv should shut off if the right code is entered if it doesnt work then a setup code has not been set