Ignorance certainly is bliss. Television serves in many ways to make men feel insecure about their bodies. Of course, you were just simply watching an educational program. But still you walked away wondering, "Do I have this?". It's like in other commercials when the narrator lists a bunch of common symptoms and then says if you experience any of these you may have "blank" disease or illness. Not to say that abnormal chest contour is a common thing, but it still makes you walk away wondering if it could happen to you or if you already have it. Then the slightest oddity can become a whole new thing to worry about.
It's great that you are aware of gynecomastia in men. But judging by your pics, I would say that you have nothing to worry about.
But how you feel is how YOU feel and if needing to read these comments helps then great.
Congratulations on the weight loss too.