英语语法，句子成分问题，请大神来分析一下这个句子的句子成分。谢谢!

Question

In 1996,a completely new concept was introduced when the first Web TV set-top boxes came onto the market.

Answer 1

In 1996作时间状语，主语是a completely new concept.

was introduced系表结构。introduced作表语。

when引导的状语从句。

整句话翻译:1996年，一个全新的概念被引进，当第一台互联网电视机顶盒面世。

望采纳，谢谢。

Answer 2

in 1996是时间状语，a completely new定语，修饰concept，然后a……concept做句子主语，was introduced做谓语动词，when到最后是时间状语从句～

Answer 3

in1996 时间状语
（a completely new）concept 主语
was introduced谓语
onto the market 宾语
when the first Web TV set-top boxes came 作introduced的宾语从句

Answer 4

a completely new concept 主语
was introduced 谓语（被动语态）
when the first Web TV set-top boxes came into the market 时间状语从句

Answer 5

In 1996,a completely new concept was introduced when the first Web TV set-top boxes came onto the market.
1996年，当第一个网络电视机顶盒进入市场时，一个全新的概念被引入。