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Lots of possibilities. If you are using the remote, try also using buttons on the TV to change channels. If TV buttons work, the remote is broken or perhaps try changing batteries and cleaning battery contacts on the remote. If neither work, lots of other things to try. You may need to set preselect channels, so your TV thinks there is only one channel out there until you do. If you are on a cable box you just need channel 3 and change channels on the cable box. I can't tell what you mean by "audio changes with the channel" ... if you mean that when you try to advance channels, it increases volume and moving down in channels lowers volume that would be strange -- if you are using a programable remote it might not be set correctly (try another programming code). The "blurred" picture is probably symptomatic of having the set on the wrong channel, and if you could set channel it might clear up ... I'd start with getting channels to change. If you need more help, give the brand and model of TV, say if you are using a remote (original or programable), and what the 'audio changes' comment means in more detail. Probably worst case is that your tuner circuit is fried, but don't assume that without more diagnostic.
Harmony remotes use IR commands, so you will always have to have line of sight for it to work.
However, if you are using the RF extender, ensure that the device you are using to change channels is assigned to the extender, and that the extender is properly paired.
very sorry for that but you can be changing channel manually on the tv channel buttons, if you sweep on all channels you can go to AV from RF channels, that is before you buy a remote.
my universal unit won't change the tv channels, everything else works except the channel changing. Does anyone have a solution., The company is only open during the week.
Either the channel up and down buttons have both broken (unlikely) or everything else is working except the remote is not telling the device you are controlling to change the channel up or down.
Since all the other buttons are working well, that also requires that the receiving end of the pair to be working well, thus ruling out problems on that end.
Solution: Reprogram your remote to support the appropriate channel up/down codes for your TV/Tuner in question.
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