Both series are slated to premiere on the SCI FI Channel in April.

"The Sarah Jane Adventures" is written and produced by the same creative team behind "Doctor Who," including Russell T. Davies.

"We are excited to have 'Doctor Who' back on SCI FI for its fourth season," SCI FI Channel's Chris Regina said in a statement. "It's an exciting franchise that continues to reinvent itself for new generations of viewers. The youthful appeal of 'The Sarah Jane Adventures' will no doubt attract even younger new viewers."

Candace Carlisle of BBC Worldwide Americas added: "The imagination of Russell and the rest of the production team in Cardiff, who have produced these two incredible shows, is outstanding. We are so pleased that the loyal fans of the SCI FI Channel will be able to meet a whole new range of characters and aliens that are intrinsically linked to the Doctor's history. Both 'Sarah Jane Adventures' and the new season of 'Doctor Who' are jam-packed with some of the most creative storylines ever produced by the BBC's brilliant team."