This is one of the earliest transgender spots in which the joke is not the surprise that someone is trans (the ad title uses older terminology of "transsexual").
A woman sits very properly in a bright red outfit drinking tea in a stylish room. The ad appeared in Israel and she says in Spanish, "All my life I felt dissatisfied with my identity. So two weeks ago, I resolved to make the change. And now, I'm a new person." The punchline isn't that she's transgender, instead it is: "I speak Spanish like a real Spaniard."