Still watching and enjoying each week. I have some suggestions wondering if you've ever thought about trying to do what you do in a live environment. Maybe you should set up a twitter page for your comedy (Own Website). I've noticed that your both into video games, maybe a video game channel on YouTube mixed with comedy. Gaming channels get tones of views. Maybe contact other like-minded YouTubers that get lots of views ask to do some comedy for them (Sketches). (Some thinking outside of the box to get your comedy out there)
I assume that at some point your going to try and get your stuff in front of production company' I know that C4 Blaps takes comedy sketches it usually opens around the end of the year. Also check Amazon studios, I think they also take sketches. Also BBC Writers room.
Very few if any production company's take unsolicited material directly. I would look for producers (Other people involved) of your favourite shows and see if you can contact them by email. Maybe go along to events where people in the industry are likely to hang out tell them what your trying to do and give them your card.
On that actual comedy maybe you could use some of the characters you've both created and have them as recurring characters in other sketches, people love that sort of stuff.
And last when you put new material on YouTube, I'd make a separate post each week in this forum with link just to remind people.