CHICAGO (CBS) — Oprah Winfrey may have wrapped up her show here, but she was back at work and back in Chicago on Thursday.

The queen of talk, who has launched a new cable network, spoke to representatives of the industry at a trade show at McCormick Place.

“Welcome to my town,” Winfrey told audience members.

In an interview with Paula Zahn, Winfrey set a three-year timetable for her cable network to be a success. She said she’s already back at work.

LISTEN: Newsradio 780’s Nancy Harty reports

“The vacation that I thought I was going to have is kind of over,” Winfrey said.

Even though her network has not garnered large ratings, she told cable-industry representatives not to bet against her.

Winfrey also disclosed the two interviews she wished she could have landed. One is Susan Smith, the mother who murdered her children and told authorities an African-American man was to blame for their disappearance.

The other: O.J. Simpson.

“I have a dream of O.J. Simpson confessing to me,” Winfrey said.

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