In a recorded Tuesday interview with the renowned TV host, President Ahmadinejad said that Zionism blocks research on the Holocaust. “They (Zionists) don't allow anyone to freely discuss the historical events that happened. They just say this is our account of history, this is what happened and everybody else must just accept it,” said Ahmadinejad.
I saw this interview. To Larry King's credit, he asked appropriate questions and gave President Ahmadinejad adequate time to respond. In all, it was a "fair and balanced" interview.
See part 1: here
See part 2: here
See part 3: here
See part 4: here
See part 5: here
You can find the complete text of President Ahmadinejad's UN speech here.