The talk show queen partnered with Discovery Communications to launch the Oprah Winfrey Network (OWN) on January 1.
Although Discovery Communications has spent an additional $12 million (£7.5m) on the cable network, OWN is "still a money loser", reports New York Post.
However, Discovery CEO David Zaslav apparently remains confident on the future of OWN. He has said that advertisers have renewed deals and there are plans to add distribution, according to the reports.
Winfrey, who left The Oprah Winfrey Show in May after 25 years, has described OWN as "mindful television".
"What I want to do is build a channel that is a respite for your mind, an oasis of stimulation, that you come away from with little pieces of light," she said.
"I'm aiming for a moment where somebody could say, 'I never thought of it that way before'. I just love that."
Ellen DeGeneres recently said that she hopes to inherit Winfrey's former audience.
"I think we'll get a new audience that maybe didn't watch me because they only watched Oprah, and they have a void now," DeGeneres said.
Watch a video of Oprah Winfrey thanking her Twitter followers below: