It may be time to replace your old Chromecast with a new one
if you want to use it for Sling TV. That’s right, watching Sling TV on the
original Chromecast is horrendous to say the least. When I tried the first
time, I didn’t get past the free period, then tried a few months later with a
Roku 2 (you can get one free from Sling TV by pre-paying three months) and
loved the service. Everything streamed smoothly, voices matched and the picture
quality was good.
Then my boyfriend moved in and we put his TV and new
Chromecast in the bedroom. My first thoughts were about getting a Roku 2 for
his TV, but tried Sling TV via the new Chromecast and am glad I did. It worked
perfectly! If only tech support at Sling TV told me this when I called. It would
have been worth upgrading my Chromecast.