These guidelines are intended to help you prepare your content to seamlessly deliver your production to the centralized production center. To obtain the best picture possible FOX 5 utilizes a completely digital production environment, so your commercials must be delivered electronically.


Digital files must be electronically received at least three business days prior to air. KSWB uses a centralized ingest hub – KSWB no longer accepts local deliveries. 

Providers listed below charge a separate delivery fee

Providers already have the the technical specifications for Nexstar systems, they just need to be notified that KSWB SAN DIEGO will be the station of air. The providers will handle file preparation and delivery for you in one simple step. Including delivery notification, changing the format for each station, and providing all technical settings and support for a high-quality, high-definition commercial. 

Important Reminders 

  • Files should be delivered without a slate
  • Files should be delivered without black at the head or tail of the spot 
  • Files should be delivered as the correct length (i.e., a :30 spot should be :30 of video) 


Use ISCI code as file name – Limited to 16 characters maximum
DO NOT include any spaces or dashes in file name 
AVOID using symbols in file name: ? [ ] / \ = + < > : ; ” , *  | 


Phone: (858) 496-0261


Q: Why can’t I send commercials directly to you? 

A: Each station within a television market use different types of equipment to play files over the air – this is why we require a delivery provider. The provider will send the correct version to KSWB’s centralized broadcast hub. 

Q: Is closed captioning required? 

A: Short-form commercials (under two minutes) do not require closed captioning. However long-form paid advertising require both EIA 608 and CEA 708 closed captioning and must be supplied in the program. 

Q: Can I use a different electronic delivery service, other than the ones listed? 

A: We strive to keep many options available to you, but each delivery service requires different equipment and specifications. The current providers listed have proven they can deliver your spots correctly and on-time. 

Q: Will you store my commercials for me? 

A: For a limited time – yes. We keep digital files during your commercial broadcast schedule. After your schedule ends our system will remove files within 90 days. 

Q: How late can my commercials arrive and still make its slot? 

A: Two business days – we check your commercial content against traffic instructions and review the media for technical quality and integrity. If you use a service provider listed above it will help speed the process.

Q: Why is it important to use an ISCI or Ad-ID code to identify a file? 

A: ISCI’s are an Industry Standardized Commercial Identifier that conforms to standard format. ISCI’s identify commercials that air and keep your media identified. Most ISCI’s are pre-assigned by advertisers, but you can also create one that describes your content, just limit to 15 characters or less.