Converting an analogue TV to an HDTV from a technical perspective is impossible. However, adaptors exist to take an HD broadcast and convert it to a signal capable of displaying on an analogue, non-digital television. This is important for secondary televisions not slated for immediate replacement in the digital age or for anyone simply wishing to extend use of a perfectly capable analogue television. Using a coaxial cable and a conventional antenna are the key elements in the conversion process.
Access the back of the television and the DTV converter. Note the location of the "RF IN" and "RF OUT" on the back of the converter box.
Screw the coaxial lead from the antenna into the "RF IN" on the back of the converter box in a clockwise fashion.
Screw the coaxial cable from the "RF OUT" on the converter to the "ANT" or "COAX" input on the rear of the analogue television.
Flip the switch on the back of the DTV converter box to either channel 3 or 4, depending on which local broadcast channel offers the least interference. Tune the TV to the same channel.
Access the DTV converter's menu to set up the channels by using the unit's remote. Begin the channel search to memorise and store available local channels. Consult the DTV converter's manual for specific steps.