FIELD: information technology.
SUBSTANCE: set top box is configured to store information of channels and playing addresses of the channels downloaded from an electronic program guide (EPG) server; when receiving a channel recording and/or channel switching command of a user, acquiring a corresponding playing address according to a channel selected by the user, and acquiring a multimedia stream of a channel program corresponding to the playing address from a multimedia server for recording or playing; and when the user needs to record and play simultaneously in the same procedure, the set top box switches the recording to be performed in a background mode, and sets the playing to be performed in a viewing mode.
EFFECT: enabling IPTV channel recording and playing, which enables a user to browse programs of other channels at the same time when recording the live channel program.
10 cl, 3 dwg
