RCA HDTV User Manual page 6

Introduction
Audio/Video Output Jacks
Because the VCRs in most households are analog and can't receive or record digital TV signals, recording digital TV
broadcasts wasn't possible without purchasing additional equipment. That's why RCA added AUDIO/VIDEO OUTPUT jacks
to this HDTV. These jacks enable you to record both analog and digital programs. RCA understands how you watch TV and
what's necessary to make the transition to HDTV seamless.
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