Hi Radius, I didn't make it very far into the video because the guy talking doesn't seem to know much about farming and my brain was starting to short-circuit listening to him.
"Pentecost" is the Christian name for the event where The Holy Spirit fell, but it happened on a Jewish holiday known as Shavuot, or Feast of Weeks. It celebrated the end of the Spring grain harvest and marked the time that landowners could start bringing their "firstfruits" offering to the temple...... which is why so many Jews from out of town (and out of country!) were present that day to hear Peter's sermon in their native tongues.
The Spring grain harvest doesn't jump around much on the calendar...and it definitely doesn't happen in August. Think May/June. This past year it fell on June 11-13 (the only complete day of it was the 12th). To mark the day, we had the youth group come to our farm and harvest some grain and thresh it out (beat it till the grain came loose from the heads). They like beating stuff
. Then we told the story of Ruth and Boaz (which is a Jewish tradition on Shavuot), and fed them whole-grain bread made from Biblical ingredients. Never seen kids enjoy whole-grain bread so much!
Anyways...it's clear that "New wine" was available during Pentecost/Shavuot, otherwise nobody would have accused the Apostles of being drunk on it. But it could not have been too awfully "new" because the grape harvest doesn't happen until July/August.
I hope this was helpful.....I didn't see enough of the video to comment on everything that was in it, but I do believe the gentleman has confused the grain harvest with the grape harvest. They do not fall at the same time of year.