Provided are an electronic apparatus and a method of operating the same. The electronic apparatus includes: a buffer configured to receive one or more first frames corresponding to a first stream and one or more second frames corresponding to a second stream; and a controller configured to identify the one or more second frames and control the buffer to output the identified one or more second frames, in response to a playback switch event, wherein the controller is configured to identify the one or more second frames based on a time stamp value of the one or more second frames distinguished from a time stamp value of the one or more first frames or a second flag added to the one or more second frames and distinguished from a first flag added to the one or more first frames.