It begins: "Hi Carol. We're so glad you called. We can't wait for you to join us. Dial 0 and we'll get back to you via text message." Obviously, I’m not Carol, but I did dial “0” to get the next part of the message.
"Please know your life is your own, Carol. You have agency!" (Again, my name is not Carol.) "That being said, Reply YES to sign up for updates from AppleTV+ and agree to our terms of use and Privacy Policy. Freq varies, consent not a condition of purchase, msg & data rates apply. Reply STOP to cancel, HELP for help."
Slightly more boring, but even for a fictitious marketing stunt, Apple has to get its boilerplate T&Cs for SMS marketing in there somehow. I replied “Yes” and got this response: