No you don't, you can put the song title in quotations thought as a substitute.
No.
No.
No i dont know the answer
yes - or use italics
No, unless you need to emphasize it.
No, it is no necessary to underline proper nouns in a regular or formative essay, unless used to exaggerate.
You need to Underline it if you are typing it, if you are writing it, it needs to be in quotes.
When you are writing about a tv show you do not underline TV show. You underline the official name for the tv show. You have to know the exact name for the show. TV show does not have to be underlined because its not proper like the real name. If I was writing about Jerry Springer i wouldn't underline "The TV show I am watching" I would undreline the show I am watching is called Jerry Springer.
yes you do underline it because titles are called pronouns which so you do underline.
No, you would italicize the name "Netflix" when writing it in a formal document or publication.
No, it is not necessary to underline brand names when writing. Typically, brand names are written in regular font without any special formatting.
If you are writing by hand, then yes you underline it, but if you are typing, you need to italicize it.