The channel was also once the #1 most viewed YouTube channel surpassing CBS in July-August 2007. It maintained this title until February 16, 2013, when almost all of its views were purged, leaving Machinima to claim #1.
At one point, UMG had a 5 billion view lead over it's closest competitors when they were the most viewed channel, which was gigantic at the time as that was at least 5 times any other channel.
The only other channel to get much of a view gap than any other channel is T-Series which is currently the most viewed channel on YouTube only doing so recently. The channel was the first to reach one, two, three, four, five, and six billion views during it's reign. Since it's major view loss, Machinina, RihannaVEVO, and PewDiePie were the second channels to get those numbers, doing so in 2013 and 2014.
Despite being surpassed by many channels since, UMG holds the record as being the most viewed channel for the most amount of time.