1. Exclusive: Snap's first original series grew 45% in its second season

In its second season, Snapchat's first original program, Good Luck America, averaged over 5 million unique viewers per episode, Axios has learned. The season totaled 29 million total unique viewers globally, 45% more than the prior season. Almost 75% of those viewers are under the age of 25, and over 90% are under age 35.

Why it matters: This is the first time Snapchat has released an episode average for a completed season of its own content. Of course, Snapchat uses its own measurement techniques that are different from television ratings (they measure a view as a video being opened), so a direct comparison cannot be made to TV, but the success of GLA as well as the launch of a daily news program on the app, demonstrate a major shift in how TV news will transition to mobile in the digital age.

How other programs are doing: Several other TV network shows are also seeing high performance on Discover:

In its first season, Vertical Networks' Phone Swap averaged 11.4 million viewers per episode globally.

Recent episodes of E!'s The Rundown are now averaging close to 8 million viewers per episode, with the largest reaching well over 10 million unique viewers.

On its second earnings calls, Discovery said 12 million viewers watched Shark Week on Snapchat Discover.

Be smart: Snap CEO Spiegel is under tremendous pressure internally and externally to drop what some call a standoffish, secretive approach and start telling the Snapchat story with more punch and imagination.

Looking forward: Snap reports earnings on Thursday.

Read more on this in the Axios Stream.