bbc.com: ad specs

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Availability	All areas Automatic expansion capped to one per user per 24 hours
Dimensions (w x h)	970 x 66 pixels retracted. 970 x 418 pixels expanded. Ad automatically expands for 7 seconds then auto-retracts. Manual expansion on click ONLY, anytime after initial auto-expand. Leave behind of 970 x 66 served to users after cap with option to manually expand. Audio - by user initiation only.
File Size	Default GIF/JPG = 40kb max \| Initial flash = 40kb max
Polite Download	Initial file size = 40kb. Total file size = 200kb (without video), 1MB (true video streaming only, progressive download must be on user click).
Animation & Looping	30 secs max. Auto-expansion: 7 secs included smooth expansion and retraction.
Capping	First auto-expansion limited to one per user per day.
Expanded Size	970x418 max. Must expand DOWN only. Only third-party vendor tags accepted to run expandable formats, please see list in the PDF below.
Creative Submissions	There are two options: either submitting only one tag which has the automatic expansion capped from third-party vendor side or submitting two separate tags: auto-expand manual expand file that will expand upon user interaction (click only) any time after the initial auto-expand. Ads must be submitted 7 working days before campaign start date.