Because much of the history of the Christian church has been marked by disagreement and division, many of the overviews of that history reflect a partisan perspective rather than objectivity. Be aware of that, and be discerning, as you watch.
Church History: Complete Documentary, AD 33 to Present - a useful overview but from an exclusively Roman Catholic perspective (Youtube)
1st Century
2nd Century
3rd Century
4th Century
5th Century
Various
The History of Christianity From its Emergence In The First Century CE - edited by Matthew A. McIntosh (Brewminate)