Can I use my directv receiver with a vizio smart tv?

Solution
A DTV receiver is designed to be used with any TV.
Use an HDMI cable to connect them.
If your DTV box doesn't have HDMI then you can hook it up with AV cables. Check the TV manual.
I do suggest you upgrade your box to one with HDMI. The picture quality will be much better and they may give you the box,
A DTV receiver is designed to be used with any TV.
Use an HDMI cable to connect them.
If your DTV box doesn't have HDMI then you can hook it up with AV cables. Check the TV manual.
I do suggest you upgrade your box to one with HDMI. The picture quality will be much better and they may give you the box,
 
Solution