How does ことし配信された動画配信大手 work as an attribute here


The sentence in question: きっかけは、ことし配信された動画配信大手ネットフリックスの番組。

For full context:
<https://www3.nhk.or.jp/news/html/20190314/k10011847731000.html?utm_int=news_contents_tokushu_004>

My attempt at translation: "The start, it was this years program of netflix,
the big videostreaming company."

The problem is that I dont really know whether I connected ことし correctly or
not. The boom started this year and it was because of netflix, that much I
already know. But I'm still a bit uncertain because ことし is very distant from
番組 itself, positionwise at least, although it is in the direct vicinity of the
phrase modifying 番組.

Also, 配信された動画配信 confuses me。動画配信 itself already contains the distribution of
information. But then 配信された is used to express that it was distributed. It
feels redundant and if I translate 配信された動画配信大手ネットフリックスの番組 in isolation it
doesnt make much sense to me either: "the program of the big video streaming
company netflix which distributed."




This ことし is an adverbial that modifies the phrase right after it, 配信された. Read
動画配信大手 as "a large movie streaming _company_ ". X大手 is a way to say "big X
company." For example, Toyota is a 自動車製造大手. 動画配信大手 is in apposition to
ネットフリックス.

> ことし配信された番組  
>  a program (which was) delivered/streamed this year

> ことし配信された **ネットフリックスの** 番組  
>  a Netflix's program which was delivered this year  
>  a program delivered this year by Netflix

> ことし配信された **動画配信大手** ネットフリックスの番組  
>  a program delivered this year by Netflix, a large movie distributing
> company




This ことし is an adverbial that modifies the phrase right after it, 配信された. Read
動画配信大手 as "a large movie streaming _company_ ". X大手 is a way to say "big X
company." For example, Toyota is a 自動車製造大手. 動画配信大手 is in apposition to
ネットフリックス.

> ことし配信された番組  
>  a program (which was) delivered/streamed this year

> ことし配信された **ネットフリックスの** 番組  
>  a Netflix's program which was delivered this year  
>  a program delivered this year by Netflix

> ことし配信された **動画配信大手** ネットフリックスの番組  
>  a program delivered this year by Netflix, a large movie distributing
> company

