“In the early Church the apostles would go to synagogue on Saurday and then have Eucharist on Sunday.”
Where did you figure that whopper out? Augustine celebrated the Eucharist everyday.
“I haven’t forgotten my promise. I had promised those of you who have just been baptized a sermon to explain the sacrament of the Lord’s table, which you can see right now, and which you shared in last night. You ought to know what you have received, what you are about to receive, what you ought to receive every day.” (Augustine, Sermon 227)
http://david.heitzman.net/sermons227-229a.html
Who says we’re only supposed to do it on Sunday? And where does it say that?
No Augustine in the Twelve Apostles -- Amazing, what reading the Bible does for one!