Thank you for the response and information. Clearly I am not familiar with the do's and don'ts of message board protocol! Hopefully I can provide all the information needed to address the problem.
The game is indeed being played on our TV, through an Xbox One console. I have checked the connections as well as the playability of the other games my son plays and everything appears to be plugged in and hooked up properly.
We purchased a physical game disk from a local GameStop store, loaded the game, immediately saw the lines/dots and called the store. They told us to uninstall the game and exchange the disk for another copy. Different disk, same problem. They suggested we try downloading the game rather than using a disk. On May the 4th, there was a promotion for the game that I took advantage of hoping a downloaded version would proved better results. Not the case. We have powered down and restarted the unit multiple times.
We have not had this issue with the lines, dots and flickering/jumpy screen with any other Xbox One game yet have had it with three different attempts with Star Wars Battlefront. Please let me know if you need any additional information. Thank you again. I hope there is a remedy!