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EyeTV Software Manual
Chapter 2 · Viewer Window
7
how to watch multiple pre-recorded programs, please see Chapter 4, The EyeTV
Programs Window).
Using Multiple Digital Channels
With digital television products EyeTV can play and record two or more TV
channels that reside on the same transponder/multiplex simultaneously.
A simple explanation is that digital TV channels are often subdivided into mul-
tiple subchannels. That means there could be multiple channels of related con-
tent available, instead of just one. For example, a network like NBC could have
a channel for regular content, and a separate channel for 24 hour weather.
With this new feature, you can watch both the NBC weather channel and NBC
regular channel at the same time.
A more technical explanation is that a multiplex is a collection of digital TV
channels that are broadcast on the same frequency, therefore a device with a
single tuner can receive all of them at the same time. A DVB-T or ATSC multi-
plex usually contains between 3 and 5 standard definition TV channels, or one
high definition (HDTV) and one standard definition channel. Cable and Satellite
multiplexes/transponders can contain 10 or more channels.
In the US, digital antenna (ATSC) subchannels are often designated by a hyphen