I keep having to sign in to use Netflix account on my LG smart TV, it keeps logging me out whenever I close the app rather than staying logged in I didn't have this issue in the past.

Is your LG Television a Smart Television and connected to your home WiFi Network? If it isn't, you can't?

If it is a Smart TV, the videos explain.

Where your Smart TV already has an app in its app pages, start that app, log onto your Netflix account (which you need to pay for) and watch away.
If your TV does not have a Netflix app, give Player a try at http://www.Playora.com - this is an app that runs on a PC and lets you open content on the screen of the PC and toss it to a lot of different Smart TVs (Samsung, Panasonic, LG, Sony, JVC, etc.). Ithing, It will be helpful for you.

Many old TV do not work on netflix , Hulu nor Vudu now.
the old app on the TV is just too old, same with my new panasonic blueray smart device for the same reason.
The App is no good.
So my solution was to buy a ROKU, v3.
and the ROKU will keep the APP working for ever,(wise choice)
now netflix.
go there using a computer, first.
log in to her account, if you can then netflix is ok.
if not you must call them and reset the account.
there are no codes,
its users email address + password.
the only rule on my account is 2 smart devices at one time. not more. (if need more pay more)

inside the account you can also delete all devices, this rests devices and will pretend the TV is brand new, unless the APP it runs is no good.
They changed formats on apps.(and is more powerful and worth the change,)

that is it , hope i covered all bases for failure..
cheers

Hello Friend
Follow these steps to watch Netflix on another TV

·Determine if your TV is a Smart TV. Smart TVs connect to your home network, and can run media streaming apps such as Netflix. Connect your Smart TV to your home network.
·Open your Smart TV apps.
·Select the Netflix app.
·Log in with your Netflix account.
·Browse using your remote.

For more info. Visit us:
Netflix Com Activate

the base account allows 2 simulations connections
eg : streaming 2 TVs same time.
to long in use your user name and PW
that is all there is to that.
no sign in to your account, unless, you like giving them free money?
no rooku does not
netflix, memorizes your device names .
so it can stream based on what it wants and needs
that means you need to sign in one time,
on each new device. used.
TV , rooku , DVD smart player. etc.
all are devices and very different.

so does vudu and hulu, i have all 3.

Hello
Just follow these steps:
1.Determine if your TV is a Smart TV. Smart TVs connect to your home network, and can run media streaming apps such as Netflix.
2.Connect your Smart TV to your home network.
3.Open your Smart TV apps.
4.Select the Netflix app.
5.Log in with your Netflix account.
6.Browse using your remote.

For any help or support just visit us: Netflix Activate

Go to Netflix.com on your comouter

create an account and provide your credit card number for billing.

Netflix Phone Number
Phone Number
888-638-3549
Press 0 at each prompt.
or they call you instead
http://gethuman.com/call-back/Netflix/
Average Wait: 5 mins - 24 hours, 7 days