In short, you're probably going to hear the word smash in one of the videos. Not actually a fan of the cookie cutter pattern as you put it and as @Welsh said is just some industry standard.
If phrases like "smash that like button, turn on notifications, and hit subscribe..." are an industry standard, they're a stupid one being repeated by nothing more than monkey-see, monkey-do amateurs who make their living by sucking the teat of Google and its algorithms.
The bitcointalk channel will thrive or fail based on the number of people who view it because of their passion for the forum--that's my opinion. I highly doubt it's going to attract an audience outside of that (unless it becomes something other than a channel focused on the forum), so all of that standard nonsense mentioned above is unnecessary. A member like me
will subscribe and
will hit the like button, and you won't have to ask people to because there are many members like me who'd be looking for new videos constantly.
Whatever you do, I wish you success with it and I'm very much looking forward to it.