You'll have to read the HTML - right click on the website, select view source.
Search the code for play or player, then determine if that is really what you want (some adverts might also be 'played' in the player). There is no hard and fast rule, you have to dig.
A lot of the time, you might have to look in the .css files or .js files associated with the website - I usually give up and try another method of watching the video (on my machine ... NBC almost never plays the show, and Fox might play the show if it's sunny and it's Tuesday).
Here's the section of HTML from NBC's
The Blacklist that might get you started. I guarantee that two websites will be different.
Code:
<div
class="video-player video-player-full"
data-mpx-url="[B]http://player.theplatform.com/p/NnzsPC/onsite/select/q4S_vDa97O34?fwsitesection=nbc_the_blacklist_video_library[/B]
&autoPlay=true
&sequenceCompleteStrategy=advanceInWindow"
data-mpx-full="1"
data-mpx-fid="2024486">
<div class="video-player-stage">
<div class="nbc_mvpd_auth_dialogs"></div>
<div
class="video-player-mpx-wrap"
itemprop="video"
itemscope itemtype="http://schema.org/VideoObject">
<iframe
src="[B]http://player.theplatform.com/p/NnzsPC/onsite/select/q4S_vDa97O34?fwsitesection=nbc_the_blacklist_video_library[/B]
&autoPlay=true
&sequenceCompleteStrategy=advanceInWindow"
id="player"
class="video-player-mpx"
frameborder="0"
allowfullscreen="true"
width="100%"
height="100%">
</iframe>
</div>
</div>
I grab the player reference (url=http://player.theplatform.com ...) and paste that into a browser - it works for me. NBC still gets the eyeball count (ad revenue) when I visit the page to read the HTML and they stream the show without commercials. I'm circumventing a problem with their player implementation.
I wish they, and other sites, would make their player work better ... I doubt that I'm the only person who has an issue with it. My machine is fairly vanilla.
You might not be able to save the file if it's streamed but you know where the source is so you can watch the video.
Anyway ... there ya go.