>>103597327Being a Premium channel: folks did not want to add to their cable bills for Hasbro's IPs.
Being owned by Hasbro: turned out only one who really spill advertising money on children/youth/family focused channels are toy makers. No one (ex. Mattel) wanted to give money to a rival; hence the infamous case of the Gak commercial running three times in a row.
Being Discovery Comms. red-headed bastard child: Hasbro makes toys; not shows. Hasbro believed Discovery would be a partner and lend guidance and stewardship in creating shows and running a tv channel. Discovery did no such thing (instead running over to suck off Oprah and OWN) and left Hasbro to figure things out for themselves.
Eventually, the thing just wore out. Discovery (and Hasbro to an extent) believed the IPs would sell the channel but customer, and viewership, strength was not there.