This is an important anime, not the best but important.

In early 80s Japan, college student Ken Kubo gets drawn into the early craze of otaku culture in the hopes of being crowned Otaking establishing a business in selling model kits in the process only for his friend to steal his business; unhindered, Ken bounces back with his remaining friends by creating a popular anime named Misty May ending with both friends reuniting and marvelling at the success they created for their culture. The live action sections are broken up by interviews with Gainax staff and actual Otaku of the era as well as two shorts depicting the anime sequence to Daicon III and IV.
I'm not big on anime reflecting the otaku culture as quite often it portrays it in a negative light hence my extreme hatred of Comic Party. With Otaku no Video it looks at it from both sides, I find it ironic the anime chose the good side to focus on, as passion for a simple animation about robots, alien women or magical girls, the most popular genres of that era can lead to fulfilling careers in the industry, the Gunpla having been created in much the same way to give more power to the adult fans seeing as shows like Gundam, Lupin and Urusei Yatsura cannot be considered kid friendly therefore toys couldn't be made nor can said anime get vital sponsorship. Without these early pioneers we wouldn't see this sort of support today. On the live action front, many of the people interviewed are the type of people that Japan feel ashamed of, shut in perverts with no ambition but to admire drawings of fictional characters portraying a world much better than their own some of which coming from Gainax themselves who have made some of the greatest anime in existence for better or worse. This era doesn't seem to have changed much just that the quality is better and were much more open about our interests, but added to this era is the internet which were all too keen to hide behind when people judge us.
It might seem harsh to bring all this up but that's reality.
Dub really isn't important in this title.
Final Verdict: This is the most honest look at Otaku culture without being patronizing. You need to see this so you can really see otaku in it's purest form both the good and the bad. It's a little dated but not much of it has changed in nearly 40 years.