Amy,
Ever thought about getting him his own personal tv and dvd player? May be cheaper then a psychiatrist for you in the future...
But seriously Buddy still watches The Wiggles occasionally and we too have it on DVD.
We used to have Bob the Builder, Elmo, Dora the Explorer, Oobi and a few others 12 hours a day. Can imagine seeing the Wiggles on a 65 inch t.v.? It is horrifying!. It was torture.... pure torture. I have got to say it hasn't gotten much better now that he is 5. We now watch Dora's cousin's show along with Yu Gi Oh and Power Rangers( I wish a bad guy would take the power rangers out with a bolt of lightening or something like that).
As for what it is about that show? I think that it is because they have songs that the kids can remember and they can participate by dancing and all.
Makes you wonder what they will grow up like watching these shows... whatever happened to normal cartoons like the Smurfs and Heman and Sheila? Oh man now I know how my parents feel. No wonder we have 5 T.v's in this house.