TV Tuner card helps to see the Television programs in a Computer or Laptop. TV tuner card is basically a video capture circuit allowing the user to see the TV programs in PC monitor and to record the same in hard disk.TV tuner cards may be the PC1 expansion bus card that can be inserted into the expansion slot of the mother board or PCI Express card (Peripheral Component Interconnect Express) which is the modern development to replace the older PCI bus standards.
Types of TV Tuner cards
Four different types of TV tuner cards are available now. These are:
1. Analog TV Tuner cards
These provide a raw video stream for real time viewing but require the video compression for recording the data. These encode the video signals to Motion JPEG or MPEG formats.
2. Hybrid TV tuner cards
This can be manipulated as both analog and digital tuners. Switching between the analog and digital systems requires configuration of the hybrid tuner card.
3. Combo cards (Combination Cards)
This card is similar to a hybrid card containing an analog and a digital card. The advantage of the card is that, while watching the analogue signals, the user can record the digital signals or vice versa.
4. External TV tuner cards
These cards can be used externally without inserting into the PC and is portable so that it can be used for Mobile TV.