The year prior in hindsight, could be regarded as being a strange transitional year of sorts for DC. You still had re-runs of House of Mouse, The Weekenders, and Recess, but they were slowly being forced out by new musical-oriented, teenybopper shows like Hannah Montana and High School Musical.

Then in 2007, most of their cartoons were shoved into horribly repressive timeslots, and teenybopper shows (since virtually all of them came from It's a Laugh Productions, their live-action shows took on a horribly interchangeable/"carbon copies of each other" feel) took over the channel 100%.

I'd say sooner, like 2002...when Vault Disney got ditched!

Luckily, The Vault is opened again...but on TCM! Which is on the rival studio, Warner Brothers!

Disney might as well put the stuff prior to Walt Disney's death (1966) for sale!

I'd say roughly around the time it ceased being a "Pay-Per-View" premium channel, which was during the early 2000s.