There are a number of ways to receive DTV signals. Some digital television sets have the digital decoding and tuning functions built into the TV - an integrated, one product solution. Others are a two-part system-a digital monitor, capable of displaying HDTV, EDTV, or SDTV signals-plus a tuner/demodulator/decoder in a separate set-top box. The two-part solution allows consumers to upgrade to DTV when they are ready.