Question: Which two five-letter words have been going steady on national TV?

Answer: Oprah and Skype.

Back in March, Oprah Winfrey started using Skype on her hugely popular show. I wrote about it when I started on this blog.

The Queen of American TV used Skype to good effect.

And this season she has come back for more. During the past seven weeks, a total of 65 Skype video calls have been made on 28 out of 35 episodes on Oprah.

During an online video segment, Winfrey said of Skype: "This season you've seen it all over the Oprah show. Viewers are sitting down in front of their computers and dialing in."

She added: "I always wanted to know what people are home were doing. Now I know. "

In a special advertising section at Oprah.com, she urges her viewers to follow the simple steps to download Skype and get started, even adding a webcam so they can call and join the show.

She said: "If I can do it, you can...I love just talking with people wherever they are."