This is probably the end of CableCARD support for all Optimum users with SA cablecards, although I'm waiting for a more public facing statement than the original letters.
Cablevision went with two conditional access solutions when they started digital cable (Originally iO Digital Cable from Cablevision, later Optimum TV). One was NDS, the other was Scientific Atlanta PowerKey. They saw that gave them flexibility to try Sony and Scientific Atlanta set top boxes, and to swap conditional access solutions without replacement (earlier Optimum cable boxes, ones shipped into the early 2010s, had a white plastic smart card inserted into the bottom right of the front of the box). Cablevision used NDS in some territory, Scientific Atlanta in others. Later on Optimum moved to Samsung boxes and gave up on having separable conditional access modules; what solution was used varied by service region. CableCARDs also followed: NDS in NDS territory. Scientific Atlanta in Scientific Atlanta territory.
NDS announced end of life for their conditional access in 2021. This meant that customers who still had boxes in Cablevision's NDS territory were swapped to Samsung STBs. NDS CableCARD users were switched to Scientific Atlanta CableCARDs. A migration and pairing/activation, but life goes on.
Now in 2024, Optimum is killing Scientific Atlanta equipment within the territory. This came in two steps:
- Optimum killed support for SA set top boxes this month (August 2024). The apparent motivation for this is that all of the Scientific Atlanta STBs do not support codecs newer than MPEG-2. Thus, to get all channels onto MPEG-4 (or another more efficient codec than MPEG-2), the SA boxes had to be retired. This follows other moves to reclaim more bandwidth for internet, including putting switched digital video into much of the territory in 2021, and then subsequently provisioning internet downstream below 850mhz. People with SA Cable boxes were sent Samsung STBs to set up in their place.
- Optimum sent a letter to many SA/Cisco (same thing, Cisco bought SA) CableCARD users saying that the CableCARD support would end in October 2024. This is undoubtedly due to the PowerKey date rollover bug, which occurs in November 2024. When the date rolls over, CableCARDs will stop working. Now suppliers have worked to salvage devices, and there is firmware for Gen2/Gen3 cablecards. (The Optimum SA boxes used a CAM smartcard on the front; they weren't the -C models that other operators had that basically put a cablecard behind a metal shield in the back.)
If point #1 didn't exist, Optimum would have a lot of incentive to implement the fixes in point #2 to fix the PowerKEY rollover bug. But with the boxes replaced for another solution in point #1, all Optimum has remaining at this point are the CableCARDs, which are a very very small subset of Optimum's TV subscribers. I would wager Optimum has decided that the cost of running the backend server/services and keeping troubleshooting of SA equipment ongoing when the only thing left are the CableCARDs and tuning adapters is more than these subscribers generate in TV revenue.
In terms of Optimum not pitching traditional STBs as replacements, my family, friends, and neighbors in the same service territory aren't being told to trade in their Samsung boxes (some had SA boxes replaced in the past couple months for Samsung), so Optimum isn't going IPTV only, at least not yet. But at the point where you're making CableCARD users migrate and you aren't suggesting traditional boxes, just IPTV based options, Optimum's long term direction is clear. I'm sure that if you called and asked Optimum would have no problem issuing you Samsung cable boxes.
I'm also not aware of Optimum using any other CableCARD manufacturer in the territory, but it's possible that in an area that was brought under Optimum when Altice reigned (Service Electric, Suddenlink) used an alternate CableCARD issuer, or that they have equipment dependencies in those territories where they are running SA STBs longer and have more incentive to fix the date rollover bug.
EDIT: To emphasize how small the footprint of CableCARD users is,
Q3 2020 is the last time Cablevision/Optimum (Altice USA) was required to report CableCARD statistics to the FCC. At that time, there were 26,397 CableCARDs deployed in 17,174 households. Cable TV has generally been
shedding users over the last four years. At that point,
according to their financial KPIs for that quarter, Optimum had 3,382,600 residential video customers. Which means that 0.057% of Optimum's video customers at that time had a CableCard, or a little better of one of every 2000 households subscribing to Optimum TV having a CableCARD... no wonder they're not enthusiastic about supporting them.