Season 1 Running Times, if you want to compare with your R3s:
R1:
Disc One
- The Stolen Eagle (52mins)
- How Titus Pullo Brought Down the Republic (50mins)
- An Owl in a Thornbush (44mins)
"Friends, Romans, Countrymen" featurette (11:04)
Disc Two
- Stealing From Saturn (55mins)
- The Ram Has Touched the Wall (52mins)
- Egeria (56mins)
Disc Three
- Pharsulus (57mins)
- Caesarion (53mins)
Disc Four
- Utica (53mins)
- Triumph (53mins)
"Shot x Shot: Caesar's Triumph" featurette (22:54)
Disc Five
- The Spoils (49mins)
- Kalends of February (48mins)
"Shot x Shot: Gladiator" featurette (23:04)
Disc Six
"The Rise of Rome" featurette (23:39)
"When in Rome" featurette (22:44)
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R2:
Disc One
- The Stolen Eagle (50:10)
- How Titus Pullo Brought Down the Republic (47:57)
- An Owl in a Thornbush (42:31)
"Friends, Romans, Countrymen" featurette (11:04)
Disc Two
- Stealing From Saturn (52:13)
- The Ram Has Touched the Wall (49:43)
- Egeria (52:58)
Disc Three
- Pharsulus (53:44)
- Caesarion (51:00)
Disc Four
- Utica (51:19)
- Triumph (50:43)
"Shot x Shot: Caesar's Triumph" featurette (22:54)
Disc Five
- The Spoils (46:45)
- Kalends of February (45:50)
"Shot x Shot: Gladiator" featurette (23:04)
Disc Six
"The Rise of Rome" featurette (23:39)
"When in Rome" featurette (22:44)