This week, Comcast is looking for a TV host, while MTV Scratch needs a director of digital creative and strategy. Fox News is on the hunt for a master control operator, and Discovery.com is seeking an art director. Get all the details on these openings below, and find more just-posted gigs on mediabistro.com.

• TV Host Comcast (New York, NY)
• Director, Digital Creative & Strategy MTV Scratch (New York, NY)
• Master Control Operator Fox News (San Francisco, CA)
• Art Director Discovery.com (Silver Spring, MD)
• Assignment Editor Fox News (New York, NY)

For more job listings, go to the Mediabistro job board, and to post a job, visit our employer page. For real-time openings and employment news, follow @MBJobPost.