03-10-2021, 02:58 PM
(This post was last modified: 03-10-2021, 02:59 PM by Mike Watterson.)
TV is now very complex with more standards than the Analogue era even without including cable, satellite and streaming/IP modes. But most of the insides of a TV are the PSU, backlight controller, and screen driving. The input interfaces isn't much and the tuner (complete receiver) is almost nothing. The real terms cost price of a 46" 4K HDR TV is less than decent mains radio set before FM in the UK. The late 1950s motorised tuning SABA AM/FM sets were a terrific price.
It looks very simple, physically.
Screens are so cheap I recently bought two 24" 2 K monitors (2560 x 1440) with stands for landscape or portrait. The first ones that I've bought that are better than the old Dell 19" CRTs for photo-editing. The pair together were less than 1/2 the price of a decent laptop. I have 2x €45 Satellite receivers via a €10 four way HDMI switch on the one fed from the laptop. The dish system just above the shed roof gets 28.2E, 23.5E (only 3 inputs), 19.2E, 13E and 9E (Ka Band, one polarity/band) into a multi-switch to feed up to 12 satellite tuners. One feed is to a TV in the living room and another to satbox there so that people can swap between a German channel and a UK one without channel changing, just input select. The demo and shopping 4K channels on 13E and 19.2E only work on the sat tuners built into the 4K TV. The cheap €45 boxes don't have RTE or BBC MHEG5, but you can tune the "red button" channels direct and use the USB HDD recording.
The recording on HDD is now very simple as a TV or setbox simply records the transport stream after demultiplexing from the other channels but before decompression. Thus replay is identical quality to live and is simpler than analogue video recording either on analogue media, DVD-R or HDD. I actually use a 2.5" drive out of a scrapped laptop in a €8 SATA-USB adaptor case. You don't need what are called AV HDDs as the TV or Setbox has ample RAM to buffer any time the drive decides to recalibrate.
It looks very simple, physically.
Screens are so cheap I recently bought two 24" 2 K monitors (2560 x 1440) with stands for landscape or portrait. The first ones that I've bought that are better than the old Dell 19" CRTs for photo-editing. The pair together were less than 1/2 the price of a decent laptop. I have 2x €45 Satellite receivers via a €10 four way HDMI switch on the one fed from the laptop. The dish system just above the shed roof gets 28.2E, 23.5E (only 3 inputs), 19.2E, 13E and 9E (Ka Band, one polarity/band) into a multi-switch to feed up to 12 satellite tuners. One feed is to a TV in the living room and another to satbox there so that people can swap between a German channel and a UK one without channel changing, just input select. The demo and shopping 4K channels on 13E and 19.2E only work on the sat tuners built into the 4K TV. The cheap €45 boxes don't have RTE or BBC MHEG5, but you can tune the "red button" channels direct and use the USB HDD recording.
The recording on HDD is now very simple as a TV or setbox simply records the transport stream after demultiplexing from the other channels but before decompression. Thus replay is identical quality to live and is simpler than analogue video recording either on analogue media, DVD-R or HDD. I actually use a 2.5" drive out of a scrapped laptop in a €8 SATA-USB adaptor case. You don't need what are called AV HDDs as the TV or Setbox has ample RAM to buffer any time the drive decides to recalibrate.
