I watch HGTV almost every day. These shows usually come in contact with lots of people and couples across the USA (and Canada).
Anyone who watches the channel will see, at any given time, many couples who are not of the same “race”. Never in the years of watching the channel has it ever shocked or concerned me or shocked and concerned anyone else on their website, blogs and forums. Why this commercial and why now?
Do you think maybe, as a joke, Stephen Hawking created a time warp to send us back to 1960 because that would explain a lot!