3 months free Apple TV

Note that for Macs, users have to additionally sign in to the TV app (menu Account), for the redeem option to appear. The redeem button will normally not be available to current or previous subscribers. Read here about the conditions: Apple TV+ offer - Terms and conditions - Apple. Please contact the staff about possibilities and redeem procedures, if you haven’t had a promotional extended free trial before.

TBroersma wrote:

Will this free 3 month offer with my new computer apply to my Apple TV subscription which is 2 months old?

No. The free subscription is for new tv+ user only and cannot be extended.