Hello AnotherOne!
For all broadcast TV, scheduled runtime is the amount of minutes between the start time and the end time of the episode. As with airtime, only pre-announced times are relevant and the order in https://www.tvmaze.com/faq/15/episodes#valid-sources should be used when different sources offer conflicting information. If the network doesn't explicitly announce an episode's end time, the start time of the next program in the network's schedule should be used for the calculation instead. This means commercial breaks within or between episodes, as well as other interstitials will be included in the episode's scheduled runtime.
For web channels, episode length is the length of the video stream on the original web channel's platform.
Based on the above, please stop changing the length of episodes of shows that are aired on TV.
Also, regarding your changing the title of episodes, you should re-read the Policy. In short, if an episode does not have an official title, then In all other scenarios, the fallback is to name the episode "Episode X", where X is the episode number for that episode. In the case of a foreign (non-English) show, the local translation of "episode" may be used.
