TD e-series funds set up question

Hey guys, finally got around to open my TD WebBroker account, got everything working, and now I'm at the point of investing. I have seen around the forum quite often that an automatic contribution of 100$/month gets you waived account maintenance fees, but I can't seem to confirm that info anywhere on TD's site (they mostly talk about +25K$ waiving the fee and such).

Edit: Found a document (521778) mentionning that fees are waived with a monthly investment of 100$ in one or more household account..

Second question, if I opened a TFSA and a SDRSP, I would need to contribute 100$ combined or 200$ (100$ per account) to get all fees waived ?

See above edit

And my third question: it seems the automatic investing form isn't publicly available online and I need to call one of their representative. Would I need to also fill out foem 595680 (Monthly contribution plan) or can I use only the file they will provide me.

Thanks a lot for your help, this TD thing sounds almost mythical, but I'm sure once everything is setted up, it'll be a breeze !

-Simon