The Catholic Church is made up of 22 particular churches that are united in a common faith but differ in liturgical practice based on their cultural heritage.
There are five basic liturgical families.
1)Byzantine (Consisting of the Ruthenians, Melkites, Romanians, Ukrainians, etc.) If it says Catholic in the name it's in union with Rome. Those that are Eastern Orthodox are NOT in union with Rome.
2) Antiochene (Consisting of the Maronites, Syriacs and Syro-Malankaras in India)
4) Alexandria (Consisting of the Copts and Ethiopians)
5) East Syrian (Consisting of the Chaldeans and Syro-Malabars)
Plus, some of our eparchies have married priests. The Eastern Churches have preserved a lot of customs that have fallen into disuse in the West such as baptism by trine immersion, 6 weeks for Advent instead of 4 weeks, celebrating All Saints Day in the spring and the use of leavened bread in the Eucharist among others.
The following video shows the difference between the Masses of the Byzantine rite and modern Roman rite. www.youtube.com
It shows a Russian Orthodox celebration (Not in union with Rome), which is similar to what Byzantine Catholics do.