My tv flickers constantly now. Only 2 years. Flickers with anything --Netflix, cable, DVD, dvr, etc. Tried to change connection to different HDMI sources but problem continues. Help!!

i would suggest a different refresh rate. should be in display properties.

Can you tell us a bit more about the problem? It would be helpful if we knew:
1) What device are you using to connect to Netflix (computer, DVD player, TV, etc.)?
2) When you use that device for something other than Netflix, do you see a picture? So if you're using a DVD player, can you play DVDs? Can you watch TV?
3) Can you log into your Netflix account on your computer and watch movies on your computer? Can you login from someone else's computer and try that?
3) When did the problem start?

Some shot-in-the-dark steps that apply to all electronics:
1) Turn everything off. Turn it all back on.
2) If that doesn't work, unplug everything. Wait 30 seconds, then plug it all back in.
3) Check all the cables (from power to your TV and Netflix device, cables coming from your peripherals to the TV, etc.). Even if they seem to be well-seated, unplug them and plug them back in.
4) Try new connections. If your TV was connected by HDMI, and you have a different way of connecting your device (DVI, component, RCA, s-video, coax, whatever) try it. If your device connects to the Internet wirelessly, see if you can get a wired connection. Swap cables wherever you can.
5) If you can, try interchanging components. So, for example, try connecting to a different HDMI port on your TV. Try other devices on your TV. Take your Netflix device (if it's not your TV) to a different TV.

Those last 2 steps may solve the problem, but are more likely to isolate the problem. (For example, if your DVD player doesn't work no matter what TV it's connected to, then the problem is the DVD player.)

Update us with as much info as you can.

If your Sony Blu-Ray player and LG TV are recent models, each should have an HDMI cable connection. HDMI is an method to connect your digital video and audio devices with just a single combined cable. In the case of your LG TV, using an HDMI cable will allow you to send the HD video signal to your TV's screen, and allow you to hear the sound through the TV's speakers.
Your LG TV may have multiple HDMI connectors, to allow other devices to send signals to your TV, such as a cable box or satellite box or digital video recorder (DVR). Your Sony Blu-Ray player will usually have just a single HDMI connector.
Purchase an HDMI cable from your local electronics store. There are different versions of the HDMI specification, and you should get a cable that you can verify is certified for the HDMI version 1.4 specification.
Plug one end of the HDMI cable into the Blu-Ray player, and the other end into one of the HDMI connectors on the TV, noting which one you selected.
When you turn on your Sony Blu-Ray and your LG TV, you should use the remote for the LG TV to select the input source. Your LG remote should allow you to select the HDMI input connector you used, at which point you should see the display of a DVD playing on the Blu-Ray player. If you cannot hear the sound, use the LG remote to increase the TV volume.

Try a new HDMI cable. There was an "upgrade" in the firmware for HDMI and i'm guessing netflix upgraded which means your four year old HDMI cable is obsolete. My reasoning may be wrong but twenty dollars is much more affordable. and most likely your problem.

switch the HDMI cable end for end, maybe try a different port

get a new one amd instage it and tell the manger that it is not working

the flicker will be the pc you have a low voltage on the hdmi board were by the voltage is up and down causing the flicker. could be a low volt on the psu or in the graphics card itself. graphics cards use a lot of power. could just need removing and given a good clean.

If you have the DVR connected to the TV with the Coaxial and the HDMI that is probably causing the problem I work for a Cable company and have dealt with this problem on numerous occasions. Try just disconnecting the Coaxial cable from the cable box that should fix this issue.

unplug your hdmi cable and shut down your pc. reconnect hdmi cable and power up pc and see if it works better for you.

No picture
when connecting HDMI:
Check HDMI cable over version 1.3.
The HDMI cables don’t support HDMI version 1.3, it cause flickers or no screen
display. In this case use the latest cables that support HDMI version 1.3.