433 mhz remote control manufacturer from China? If that amazes you, you’ll be really surprised by how different it was to watch television. In addition to having only a dozen channels rather than hundreds, they also had to walk across the room to turn a knob on the television set if they wanted to change channels! Today, all you need to do is push a button on the remote control to flip back and forth between hundreds of channels. In fact, many of the things you use every day can probably be controlled remotely. From garage door openers and toy …