I used my TV's built-in speakers for years before taking the leap and building a Dolby Atmos home theater. I started off small, buying affordable bookshelf speakers in JBL's Stage2 lineup. From there, I added floorstanding speakers, up-firing Dolby Atmos height speakers, and a center channel. I threw in an Edifier T5 subwoofer I already had from a previous setup, and two years later, I had a functional Dolby Atmos home theater.