Old TVs do not have a software/hardware capable of playing your videos. The only way is to buy an additional thing like Android TV box and connect it with TV via HDMI cable.
If you try to log in to Twitter unsuccessfully for several times, you may get locked out. Twitter limits the number of times that someone can try logging into an account for security reasons.
This lock gets cleared automatically after 60 minutes. You will thereafter be able to log in...
I use paid clients on my working machines. They are kaspersky and dr. web.
Had AVG and Avast free versions and catched some viruses. Not recommend for important tasks.