I embed the emitter and route the wire over to where the AV connections are to bring it out. I zip tie it with the HDMI & power cord and then slip tech flex over all three.

In the last 5 years i have run into 2 TV's that were so thin i couldn't figure out how to get to the emitter without really taking it apart so i stuck the emitter on the Back for one and on the bottom for another with hot glue. Then i made a little bead of hot glue on the back that i stuck the emitter wire into so it couldn't sag. On one TV i had to make 3 beads of hot glue because the AV connections were so high up on the TV.

Electrical tape IMO may seem tacky/hacky but it looks the best. The problem is that it gets gooey and starts to fail. The hot glue isn't too bad looking and it won't fail.