Learn Turkish: Odada bir televizyon var. - There is a television in the room.

In Turkish, the word expressing existence (var for 'there is' or 'there are') almost always comes at the end of the sentence. The basic word order for these sentences is: Location + Subject + var. A literal translation of this sentence would be 'In the room, a television exists'.

How do we get 'in the room' from odada?

The base word oda means room. The -da attached to it is a suffix that shows location, meaning 'in', 'on', or 'at'. Because oda ends with the back vowel a, we use -da instead of -de to make the sounds match.

Does bir mean 'a' or the number 'one' here?

It can mean both! In Turkish, bir acts as both the number 'one' and the equivalent of the English 'a' or 'an'. In this context, it naturally translates to 'a television', but 'one television' is also correct.

If there were multiple televisions, would var change to a plural form?

No, var never changes its form. It stays exactly the same whether you are talking about one thing or a hundred things. For example, 'There are two televisions in the room' would simply be Odada iki televizyon var.