die Sendung
program
A program or segment that is broadcast on television or radio.
Jeden Sonntagabend schaue ich mir meine Lieblingssendung an.
Every Sunday evening I watch my favorite program.

program / shipment
Loading your saved state.
program
A program or segment that is broadcast on television or radio.
Jeden Sonntagabend schaue ich mir meine Lieblingssendung an.
Every Sunday evening I watch my favorite program.

'Die Sendung' (the program/shipment) is the noun related to the verb 'senden' (to send/broadcast). The ending '-ung' turns the verb into a noun that describes either the process or the result of sending.
Ich muss dir noch ein Paket senden.
I still have to send you a package.
The two main meanings can be easily distinguished by context. Words like 'Fernsehen' (television), 'Radio' (radio), 'live' (live), or 'Moderator' (presenter/host) point to a program. Words like 'Post' (mail), 'Paket' (package), 'ankommen' (to arrive), or 'Adresse' (address) refer to a delivery.
Hast du gestern Abend die politische Sendung gesehen?
Did you see the political program last night?
When a program is meant, 'Sendung' (program) is often combined with verbs such as 'sehen' (to see/watch), 'schauen' (to watch), 'hören' (to listen to), 'aufnehmen' (to record), or 'verpassen' (to miss). People also speak of a 'Live-Sendung' (live broadcast).
Ich habe die letzte Folge der Sendung leider verpasst.
Unfortunately, I missed the last episode of the program.
In the context of a delivery, 'Sendung' (shipment) is often used with verbs such as 'erwarten' (to expect), 'erhalten' (to receive), 'aufgeben' (to send/drop off), or 'verfolgen' (to track).
Sie können den Status Ihrer Sendung online verfolgen.
You can track the status of your shipment online.
consequence / episode
'die Folge' and 'die Sendung' can both refer to something you hear or watch on television, radio, or as a podcast. The difference lies in the structure: a 'Folge' is one individual part of a series. A 'Sendung' is more generally a program or segment that is broadcast. A 'Sendung' does not have to be part of a series. Learners may confuse the words because a 'Folge' can also be broadcast. If you mean a specific part of a series, 'Folge' is more precise. If you are talking generally about a television or radio program, 'Sendung' fits better.

Im Radio lief am Morgen eine interessante Sendung über gesunde Ernährung.
In the morning, there was an interesting program on the radio about healthy eating.
Ida hört im Zug die letzte Folge eines Podcasts.
Ida listens to the latest episode of a podcast on the train.