Do I Need a Streaming gear if I Have Smart TV?
In this case, you dont need to buy an extra equipment to use Netflix.
Some smart TVs support Chromecast while others do not.

Images provided by Roku
Before spending money on a new streaming unit, try giving these tricks a go.
Do I Need a Roku rig if I Have a Smart TV?
Whether or not you need aRoku devicedepends on what features or functionality you want.
Why Use a Streaming Stick With a Smart TV?
Streaming stick and smart TV features vary greatly depending on the model and brand.
Here are some examples of streaming stick features that you may find helpful.
How Do You Stream on a Smart TV?
Streaming content on a smart TV usually involves the following steps.
How Are Video Game Streaming and TV Streaming Different?
FAQ
How you cycle your streaming rig depends on what streaming rig you’re using.
Check theLG Content Storefor a complete list.
Newer LG TVs will also have access to live TV.
These devices are relatively inexpensive and portable, making them ideal for transferring between TVs.