Share contents between my Galaxy Note 5 and Samsung Smart TV I used to have a Samsung Galaxy Note 3 a few years ago, I remember I could connect my phone with my 8880 Samsung Smart TV.

This connection was two way, I used screen mirroring so I could display phone contents on the TV, and I could watch TV programs on my phone.

I even remember once my wife was watching TV and I watched another program on another channel using my phone (connected to TV).

Unfortunately I can't remember the application names which provided these features.

Its now two years that I have changed my phone with a Galaxy Note 5, and I have done all the upgrades. The problem is I can not do what I did with the old version of mobile set. I believe I don't have the applications, and I can't remember their names.

By the way is there any way so I can screen mirror a video played using streaming (is not on my phone but it is online) on my TV? Because Samsung Smart View application just shares contents (videos/photos/music) which are stored in my gallery.
Screen mirroring is a feature available on some editions of Samunng Smartphones, but unfortunately has been removed in later builds on smartphones and replaced  Samsung Smart View and related.


  Using the Screen Mirroring feature, you can share your Galaxy device’s
  screen with your Samsung Smart TV or with an HDTV using the AllShare
  Cast Wireless Hub.


The following phones support the Screen Mirroring feature by default. Some phones can be modified through a custom ROM, so they also may be able to support screen mirroring.


Samsung Galaxy S3, S4 ,S5                                 
Samsung Galaxy Note 2, 3, 4 


Nevertheless you can use alternatives app to achieve the same e.g Screen Mirroring from Playstore.

Another aggressive way of enabling the feature in Note 5 is perhaps rooting and editing build.prop line: wlan.wfd.hdcp=disable (anywhere within the additional build properties section, preferably at the end)
under /Device/system folder. (Remember to save and reboot) as outlined here on XDA thread.