"I Want my Apple Store?" (formerly MTV)

First and foremost I would like to know in all certainty why the cable television networks MTV, VH-1, and BET all stopped broadcasting music.  MTV was an iconic watershed.  Music Television.  That was kind of a new concept at the time.  Music has been on television since its inception.  That is because entertainment in America before the invention of television utilized music to a great degree.  There were other elements, but being able to hear music over the radio was a great augmentation to the sound of only the human voice.  Possibly radio and its recent death is worthy of more study and respect.  There are many unresolved questions floating around in my mind.  The first is, "Who owns the 'rights' to the Top 40 radio airplay hits of our recent decades?"  I am aware at one point in time, the "King of Pop" Michael Jackson with his seeming infinite fortune purchased the entirety of the Beatles catalogue.  When he began having troubles in most likelihood he sold this massive and representative fortune to whom?  (Question number two)  Because as a musician and consumer during the last decade I have purchased, mostly because of late night television advertising, collections of past Top 40 radio hits.  There are many available.  I have Country Hits that encompass years back to the 1940's.  It is interesting to hear "country" music from then.  How different is it from 'Crooning' music or 'Easy Listening?'  How different is it from 'Swing?'  I have the Disco collection.  Never has the Fender Rhodes electric piano sounded so good with a viable orchestral string section and a "snap and pop" electric bass player.  I have "AM Favorites."  I have the "Best of Gospel."  I have "Classic R&B."  Each and every music collection was purchased from Time/Life.  Is that the same as Time/Warner?  Warner Brothers used to be one of the top three American record labels.  Comcast purchased Time/Warner?  Question number three.  "What corporation owns the rights to this Top 40 music?"  Again.  "What corporation owns and maintains the copyrights to this Top 40 music?"  With the upsurge of telecommunication and specifically the cellular phone, it is well known the once pristine radio airwaves now are replete with rogue frequencies.  Every Tom, Dick, and Harry has a miniature radio station in their palm.  With each call or text character electromagnetic pollution haunts these airwaves.  Interference has become a large problem in both AM and FM broadcasting.  Add to that the communicating of mass travel and well, you get the drift.  America ain't what she used to be.  Simply I would like to know what prompted these once viable television networks to stop their broadcast of music videos.  Was it because rock 'n' roll now is dead as so purported both by Pete Townsend of "The Who" and Gene Simmons of "Kiss?"  Broadcasting out-of-date music videos would be unhip?  It can be agreed upon that the musical era of the 1980's is different than the eras of Grunge, Hip/Hop, New Country, and Pop.  I remember still videos of these styles being viable.  Simply, "Why did MTV, VH-1, and BET stop broadcasting music video?"  How could shallow, untalented, gossip-oriented, reality-type TV shows take the place of MTV?  I don't get it.  I suppose it is a dollar thing.  Music is, was, and should be the pulse of life.  It documents history, it inspires souls, and it comforts the needy.  Music single-handedly has been the bloodstream of America since her inception.  That is because music in her artistry intuitively creates a metaphor for human existence.  Without words, without pretense, and without politics honest music is the human condition, or at least it used to be.