In the duel between Yugi and Pegasus using the videotape, supposedly every Pegasus move was pre-recorded before the fight; during the first half of the duel, Pegasus used subliminar message by insert images into some frames to make Yugi choose certain types of monsters, so Pegasus theoretically would play the correct card to defeat him every turn. However we also know this is a Shadow Game, so Pegasus could use supernatural effects instead of just manipulating Yugi using the frames or predict his moves due to his knowledge of game and Yugi's strategies. So he (or his recording) can in thesis uses his Millenium Eye - according to the wiki he did it:
Secretly Pegasus was using his Millennium Eye to read Yugi's mind.
However, the timing of Yugi's turn durations and Pegasus turn durations seems to be so synchronized to be a duel against a pre-recorded tape. On the other hand, if it's not a pre-recorded tape, then how Pegasus would be prepared to duel Yugi in the exact day and hour he starts to watch it? It would be ridiculous to think about the long-haired businessman waiting all the time until Yugi put the tape in his video. But the wiki article suggests that the tape is more than a single tape, allowing instant communication between the one in the tape:
Although it appeared to contain a prerecording, people on the tape were able to communicate with people watching as if they were present at the same time and location as them.
I can't find in the manga a definite clarification if the duel was against a pre-recorded Pegasus or the real Pegasus in the same time, being able to communicate due to his Millenium Item effects over the tape. Is there any official explanation, be it in the manga or another source, about what really happened in this duel?