The most simple is with an HDMI cable straight to the TV, assuming all devices have HDMI. We need to know your setup before we can accurately tell you the right way to hook it up.
1) What model blu-ray?
2) What model TV?
3) Is the connection going straight to the TV or do you want it to go through a surround sound receiver first?
if you have a sound bar it needs to go to the connector marked ARC otherwise the bluray sound won't be routed there... blueray and cable box goes to a non ARC port
If one were to use the ARC function for a soundbar or receiver, would you not just connect all devices to the TV, then connect the ARC HDMI from the TV to the ARC HDMI on the soundbar/receiver?
The D series Vizio's HDMI connectors vary in quantity and function depending on screen size. But all only have one HDMI ARC port and on the small sets it's also the only HDMI port. I think a 39 has 3 hdmi ports but only one has ARC output functionality. The 24 only has a single port and it's a pita .
If there's no sound bar or audio routed to a receiver, there shouldn't be a problem.
Also if connectors are interchanged, you may need to reset the tv to factory default and with all devices connected, go thru setup again.
If any of the D series have the internet options and you got the latest firmware upgrade, they seem to be castable via smartphone aps and seem to perform better than the E series sets which have a horrible remote. On any of the IP capable sets, we recommend an actual internet connection.
and don't use the wireless especially in an apartment situation, your tv may start playing stuff you don't want, lol.
IF CEC is enabled, there's a lot of other strange remote control functionality as well, some good some bad. One of the issues I've seen is turning off the TV also shuts off the dvr and prevents some from recording...
or turning off the cable box or blu ray turns off the tv as well.