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Cut the cord - How to record TV with only an Antenna. 

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How do I record from my HDTV?

You can record over-the-air broadcast TV programs on a VCR using a DTV converter box or you can invest in a DVR. DVRs are available from TIVO, SiliconDust, Tablo, and more.

Cord cutters DVR to record FREE TV

Free TV is local over the air TV using an antenna connected directly to your HDTV. You can get high definition TV, better resolution video than cable, from the networks such as CBS, NBC, ABC, FOX, CW, PBS, and (Spanish) Telemundo and Univision.

With Cable and Satellite TV, you typically get a DVR to record TV shows. These boxes work with the providers sources and schedules/guides. But how do you record from just an antenna?

Tablo Dual LITE [TDNS2B-02-CN] Over-The-Air [OTA] Digital Video Recorder [DVR] - with WiFi, Live TV Streaming, Black

SiliconDust HDHomeRun Flex Duo 2 x ATSC Tuners - HDFX-2US

SiliconDust HDHomeRun Flex 4K ATSC 3.0 NextGen TV: 2/4 Tuners HDFX-4K

Tablo Quad TV Tuner For Over The Air - Cut The Cord - YouTube

Where do I get my program guide information over-the-air?
Program and System Information Protocol which can carry program guide information as well as channel mapping and other data for your TV. It is part of the digital TV broadcast standard ATSC. Your HDTV has an ATSC TV tuner built in and can interpret this information.

Record two shows while viewing a third.
The DVR can record two TV channels while you view another channel on the TV. A signal splitter is used to send over the air TV shows to the DVR and the TV.

Diagram - Antenna split to DVR to record and TV to view

Recording HDTV from antenna to VCR or DVD Recorder.

Diagram - connect antenna through splitter to DTV box to VCR for recording and viewing

View one channel on TV while recording another on VCR. Playback to TV using RCA inputs. Use tuner in TV for viewing while using tuner in digital to analog TV converter to send audio/video to VCR or DVD recorder.

o How to connect HDTV with only optical audio output to stereo

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