broadcast = le programme (ici, le film publicitaire vantant les mérites du "reserved device")
release = la sortie
D'après le contexte, ça n'aurait aucun sens de demander l'approbation de la FDA au moment où le programme est diffusé. Par définition, ça, ce serait trop tard ....

--------------------------------------------------
Note added at 7 mins (2009-09-20 15:00:53 GMT)
--------------------------------------------------

"The broadcast was released in Europe on Region 2 DVD on April 30, 2007. Joey Styles was present at the event and provided play-by-play for the DVD release."
http://en.wikipedia.org/wiki/Hardcore_Homecoming

c'est de la lutte, mais ça illustre bien "broadcast release"

My reading is that the ad material is submitted to the FDA at the same time as it is sent to the broadcast media for inclusion in future ad-breaks. The first airing may come some time later (maybe several days later).

That is consistent with the functions of the FDA which, AFAIK, cannot censor ads in advance but does need to be informed in a timely manner about upcoming ads for certain products so it can respond to eventual complaints from viewers.

Note that 'diffusion' occurs many times whereas submission to the FDA occurs only once (for a given ad), so 'diffusion' is not appropriate here.

--------------------------------------------------
Note added at 55 mins (2009-09-20 15:49:50 GMT)
--------------------------------------------------

[PDF] Food and Drug Law Journal: The Development of Direct-to-Consumer ...
File Format: PDF/Adobe Acrobat - View
to the medical community.29 Drug manufacturers did not practice DTC advertising of prescription drugs at the time that Congress was considering transfer of ...
www.kff.org/rxdrugs/loader.cfm?url=/commonspot/security/... - SimilarDirect-to-consumer advertising - Marketing ethics - Ethical ...
24 Mar 2009 ... In countries such as the US where DTC advertising is common industry practice, we would be at a competitive disadvantage if we did not ...
www.gsk.com/.../direct-to-consumer-advertising.htm - Cached - Similargenome.gov | Direct to Consumer Marketing Meeting Summary
Coordinate/facilitate the development of a formal petition to the FTC outlining the concerns with current DTC advertising practices for genetic tests. ...
www.genome.gov/12010660 - Cached - SimilarNEJM -- A Decade of Direct-to-Consumer Advertising of Prescription ...
20 Jul 2007 ... Studies of the effect of advertising on prescribing practices have ... Since direct-to-consumer advertising has a significant effect on ...
content.nejm.org/cgi/content/full/357/7/673 - Similar
by JM Donohue - 2007 - Cited by 87 - Related articles - All 10 versionsA Preemptive Strike: US Medical Devices DTC Advertising Comes ...
17 Sep 2008 ... One reason given by lawmakers to justify its current scrutiny of medical devices DTC advertising practices is that “medical devices can have ...
www.biojobblog.com/.../a-preemptive-strike-us-medical-devic... - Cached - Similar