First clean the pitcher, lid, steeping basket and steeping basket before you use it the first time. Run a brewing cycle without any tea the first time and discard the water.
With the unit unplugged, fill the pitcher with water to the top water level mark on the pitcher and then pour the water into the reservoir. Do not overfill. Place the steeping basket and lid on top of the machine. Place a tray of ice cubes into the pitcher. Turn the steeping dial to open. Put the lid with the spout open on the pitcher and slide it, spout first, under the machine. Plug in the unit and turn it on. Wait until it turns off automatically.
For brewing, fill the pitcher with water to the line for the desired amount of tea. Pour this water into the reservoir (with the steeping basket and lid removed). Place a Mr Coffee filter into the steeping basket and add the desired amount of tea bags or loose tea. You can add sugar or lemon over the top of the tea if desired. Slide the steeping basket into the unit and put on the lid with the steeping dial set to closed. Fill the pitcher with ice to the desired ice level or with cold water to the same volume as poured into the reservoir. (If you are using water, put the pitcher in the refrigerator to chill.) Slide the pitcher with the lid on under the brewer and make sure the lid is open over the spout. Plug in and turn on the brewer. When the brewing cycle is done, it will turn off. Turn the steeping dial to open to drain the remaining tea from the steeping basket. (Let the remaining tea sit longer before opening the dial if you want stronger tea.)
You can get the manual from http://www.mrcoffee.com/Products.aspx?cid=43
. Click on the link for the TM3 (all the models in a series work the same way).
I hope this helps.