Oh, man. One time I saw the Wiggles DVD sampler on Ebay and just assumed it wasn't real. (It didn't have a case, and the disc just had the Wiggles logo on it and pictures of them. So I thought it wasn't a real Wiggles DVD because it had no title.)
But it was real. It had 3 episodes from the Lights Camera Action TV Series that ran 11 minutes and 5 songs. The five songs are Dance a Cachucha, Dancing in the Sand, Play Your Guitar with Murray and Move Like an Emu.
I think what he means by them being "necessary" is that things that The Wiggles have done or are currently doing such as books, DVDs, VHS tapes, CDs, tours and stuff like that would be necessary but a petition would not because Wigglepedia does not need petitions. Although, we could make like 90 different change.org accounts and use those to sign your petitions!
I may write a letter to the Wiggles telling them about Xuxa.
By the way there was something funny I had to show you about it, On Dillon Meelee's twitter account he posted this, With the caption saying: "This is Xuxa's ripoff of Joey the Crab. I call it "Jose a lagosta" (that means Jose the Lobster)"