Philips 21PV548/07 - Manual (Page 6)

The tape speed for the recordings is cut in half, thus you can record 8 hours
onto a 4-hour-cassette. For playback, the correct recording speed will
automatically be selected.
With this set you can playback cassettes that have been recorded on another
video recorder in the NTSC standard (for example, American cassettes).
Switching between the different TV Systems takes place automatically.
The TV-Video Combi shuts itself off automatically after a certain
pre-programmed time period has elapsed (max. 4 hours).
Sleep timer settings can be programmed in steps of 15 minutes each.
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