This clip from Spinal Tap is apropos, because it's a lampoon of the Monkees video, but they were also lampooning Maiden, Sabbath, Priest, Saxon, Randy Rhoads, Ian Gillan, etc: https://www.youtube.com/watch?v=I-BYzaDwNoE

This is an interesting interview with Bruce Dickinson of Iron Maiden, because it addresses a rumor that they had walked out of Spinal Tap because they believed the band was making fun of them (which was untrue): http://www.dailymail.co.uk/home/moslive/article-1022475/He-aint-heavy-hes-captain----Iron-Maiden-rocker.html

It's important to note that the members of Spinal Tap were all musicians and played their own music from the get go, whereas the Monkees only recorded their vocals and had other people play the instruments. Of course, in time the Monkees learned to play, even if there was so much wasted recording time they had to bring in other musicians to fill in. They eventually improved enough to play live shows with their own instrument play.

I gotta do my best to defend the Monkees, Iron Maiden, and Spinal Tap, because they ARE all great acts and entertainers. I say ARE because, as of 2016, The Monkees, Iron Maiden, AND Spinal Tap are all touring to this day. Not together, of course. That would be too awesome.

"...essentially simple composition, featuring an organ intro, three power chords, and a two minute long solo. Lyrically dark, vocalist Ian Gillan utilizes his full vocal range and goes from quiet singing to loud, high-pitched, banshee-esque screaming. Guitarist Ritchie Blackmore comes in with a slow solo, which builds up to a fast-pace playing and then ends abruptly, with the whole song cycle starting over again. Blackmore is normally associated with playing a Fender Stratocaster, however, he played a Gibson ES-335 on the studio version of the song."
- http://en.wikipedia.org/wiki/Child_in_Time

Sabbath represents so many sacred things.... Ozzy is the perfect metal singer... see to me Dio's voice doesn't say metal. It says opera. It even has an almost jazzy feel to it. He is undoubtedly good singer, but I don't necessarily think that good singing makes for a better metal band. He's too polished for me. Too melodic. Iommi is an innovator and really made a huge mark on the music world with Ozzy.

In reply to this comment by enoch:
bah..sabbath was not only my first love but my first concert.never say die 1978.i love ozzy,loved sabbath's first 5 albums from front to back but you gotta give dio some credit.his ability to sing a far greater range than Ozzy let Iommi show what he could REALLY do.the last concert i saw from sabbath was born again.that was sad night,not that sabbath sucked, ian gillan was superb..no..it was the fact that almost the whole civic center was there for quiet riot.how sad is that?

bah..sabbath was not only my first love but my first concert.never say die 1978.i love ozzy,loved sabbaths first 5 albums from front to back but you gotta give dio some credit.his ability to sing a far greater range than ozzy let iommi show what he could REALLY do.the last concert i saw from sabbath was born again.that was sad night,not that sabbath sucked, ian gillan was superb..no..it was the fact that almost the whole civic center was there for quiet riot.how sad is that?

Pre-Ian Gillan they barely sound like the Deep Purple most people think of. Very groovy though. I was just reading that this song was written as a country music song.