What kind of anchor through drywall to steel studs would you use for 90 lbs TV?

I have done this a few times. If the steel studs are in a good position, I use 1" drill tipped screws into the stud, OR I put 6 E-Z Ancor's into the wallboard next to the stud. I have hung up to 120 pounds on 4 E-Z Ancor's and never had one come out. -Available in Rona and Home Depot.