What exactly are they trying to accomplish? How can it be effective? The longest ad I've seen is 3 hours. Who's going to watch the whole thing, except if Youtube is going through a playlist and you've fallen asleep?
Longest unskippable I've seen is 1 minute, I hope that doesn't become an trend.
Longest unskippable I've seen is 1 minute, I hope that doesn't become an trend.