Schema.org TVEpisode entries for multi-source playback page - schema.org

Question

I'm expanding a static site with playable videos contextualized in a TV Series and I would like to know how to properly fill in the tags url and datePublished.
Currently, with only one embeddable source, the JSON-LD generated is:
<script type="application/ld+json">
{
"#context" : "http://schema.org",
"#type" : "TVEpisode",
"partOfTVSeries" : {
"#type" : "TVSeries",
"name" : "Name of the Show"
},
"keywords": "a,list,of,comma,separated,tags",
"partOfSeason" : {
"#type" : "TVSeason",
"seasonNumber" : "1"
},
"episodeNumber" : "1",
"image" : "absolute/path/to/video/image.jpg",
"url" : "permalink",
"review" : {
"#type" : "Review",
"author" : {
"#type" : "Person",
"name" : "Summary Author Name"
},
"reviewBody" : "Summary"
}
}
</script>
With only one embeddable source it was just a matter of using the template functions to retrieve the Permalink and the Date in which the video has been published.
But I don't know how to do it for multiple sources.
I tried to simply duplicate the whole block, simulating an iteration, changing the mentioned values but when testing with Structured Data Testing Tool, although no errors were reported, the second entry was ignored.

Answer 1

In JSON-LD, if you have multiple values for a property, you have to use an array as value instead of repeating the property.
You could provide multiple VideoObject items for the TVEpisode, by using TVEpisode’s associatedMedia/encoding property:
<script type="application/ld+json">
{
"#context": "http://schema.org",
"#type": "TVEpisode",
"associatedMedia": [
{
"#type": "VideoObject",
"name": "Source 1"
},
{
"#type": "VideoObject",
"name": "Source 2"
}
]
}
</script>
Now you can differentiate between the metadata for the TV episode and for its videos.