Complex sentence: While the earlier remote could turn sets on or off and change channels, it was inconveniently connected to the TV with a cable Earlier remote control's served as the central control system for transmitting complex signals to the receiving monitor.
Split into simpler sentences: While the earlier remote could turn sets on or off and change channels, it was inconveniently connected to the TV with a cable. Earlier remotes served as the central control system for transmitting complex signals to the receiving monitor.