Israeli police raided the east Jerusalem studios of Palestine TV on Friday and briefly detained three staff for questioning, a spokeswoman said.
"Police carried out searches at the headquarters of the television channel, as part of an investigation into the content of its programmes," spokeswoman Luba Samri told AFP.
"Three employees were arrested, questioned and released," she said, adding that "no programmes were interrupted and the investigation is ongoing."
Israeli public radio said police suspected Palestine TV of broadcasting "incitements to violence."
A Palestinian media report online said two cameramen and one guest on the channel's "Good Morning Jerusalem" programme were held for questioning.
In a separate crackdown on Palestinian media, Israeli soldiers raided the offices of a Palestinian newspaper in the West Bank city of Ramallah on May 28, ordering it to stop printing publications by Islamist movement Hamas, managers said.