I get around 20+ magazines about this and other related industries. REED Business Periodical's has many options. Of coarse CED Magazine is a must! Telecommunications magazine is a good one. There are several that are just for cable folks. Just search the Internet and start at Reed. If you are qualified, you will get them for free. I do not pay for any of them, and they keep sending me more and more. Be careful though, they can send so much information that you would have to devote your entire day to reading it all. You can send me a private message and I will give you some links.
This is CABL.com posting #183785. Tiny Link: cabl.co/mVYr