I have a Sylvania 6424FF tv and i cant get it programmed to a univeral RCA remote the codes listed are NOT working

Hello
RCA- RCU 500 model universal remote has Sylvania TV coded with. The codes are:

006,007,010,011,013,016,027,
033,035,043,049,066,087,089
Programming method

[1] Press the button of the device you want to
control (for example TV).

[2] If the device turns on, press another button,
to confirm (for example CHANNEL UP)

[3] If the device you selected (TV) responds,

you will not need to program the remote.

If the device you selected (TV) does

not respond, you will need to program
the remote
There are very rare RCA remotes, with Sylvania TV can be programmed. Just try the above codes with your present RCA remote control. If it does not help, buy the above model RCA universal remote. You will get code list and all other related documents, how to programme it or so, with the device you do purchase. OK.