From what i was able to garner from internet searches, i THINK you actually have to go to a broker to trade gray sheets. There doesn't seem to be a whole lot of information out there on the subject. I use TD as well and they aren't showing anything at all....This link will take you to a "Gray Sheets" discussion board on IHUB:

https://investorshub.advfn.com/Grey-Market-or...;-A-25608/