In fact, the second sentence "텔레비전을 보자마자 잤어요" sounds like when your sight reached tv, you slept right away simultaneously.
0 voted
July 23, 2018
0
Commented
Maybe you meant "Let's practice" on the title
0 voted
July 23, 2018
0
Commented
Well actually I'm not a native Japansese speaker but I guess I could answer this question. をis an object marker which indicates the fact that the word left to を is an object. をdoesn't exist in English while にcould be translated into "in/to" in English.
ex) 俺は映画館に行った。
=I went to the movies.
-> The sentence doesn't have any object
ex)俺は服を買った。
=I bought some clothes.
-> clothes is the object and を indicates that 服(huku) is the object
