Is the argument that someone will have to work for the commercial to air?
No. That's not the argument. The argument is:
"Remember the sabbath day, to keep it holy. Six days shalt thou labour and do all thy work, but the seventh day is the sabbath of the Lord thy God. In it, thou shalt not do any work. Thou, nor thy son, nor thy daughter, thy manservant, nor thy maidservant, nor thy cattle, nor thy stranger that is within thy gates. For in six days the Lord made heaven and earth, the sea, and all that in them is, and rested the seventh day. Wherefore the Lord blessed the sabbath day and hallowed it." - Exodus 20
I'm not really sure how commercials/television work, but apparently the commerical is already made, so it will basically just air during that time slot. No one will be made to work who wasn' t already going to choose to do so. Right?
This is the same argument that non-Sabbatarians use to go to the restaurant (i.e. that the waiter, waitress, cook, already chose to work) on the Lord's Day. Respectfully, Friend, does that make it any better? Ought we contribute to another's sin? Absolutely not.
I know it may seem that I'm just being an old curmudgeon, but I hope that better will be thought of me. Ultimately, however, I'm not so concerned with how I am seen as much as the Lord's Day be exalted to its rightful sanctification.
Wherefore the Lord blessed the sabbath day and hallowed it.