Oh yeah. TiVo is close to coughing up blood. And I say this as someone who started using the device with a single tuner Series 1 and currently has a six tuner lifetime Roamio Pro with a 4TB drive and four miniLuxes.
I give cable cards maybe another year. Less if one of the bigger providers ends support with 30 days (or less) notice. From what I read here on the forums, lots of regional cablecos have sent out "we're stopping cable card support" letters which can be considered as having given notice and so can abruptly stop talking to them at any time.
I wouldn't recommend anybody purchase new Tivo hardware at this time, but "
one year" as a blanket statement is something I do not see happening. Spectrum has mailed people with CableCARDs saying that they will replace PowerKEY cablecards with new cablecards if the household does not take action to migrate to something else. Getting a high split converter in areas that have it is a challenge, but something that if escalated, Spectrum will do (in areas that do high split where the HSC is essentially a different type of tuning adapter). Reportedly, Spectrum has also stopped any sort of retentions promotional discounting for CableCARD users.
Meanwhile at a similar time, Comcast said no new CableCARDs for new or existing customers. Existing ones work, but you're not adding or replacing any.
From another thread here, people are saying that Comcast is sending notices that people with single stream PMK600 SA/Cisco Powerkey cableCards aren't getting a fix and aren't getting new cablecards, but
CableCARDs and tuning adapters are finicky, but CableTV is already a dying breed, and I suspect that long time CableCARD users are fairly stable in their setup and less likely to negotiate promotional pricing (and less likely to cord cut if refused like Spectrum is allegedly doing now). That's a good reason to not give out new CableCARDs if not legally required (and it isn't since Q3 2020), but there's not a good reason to phase out existing CableCARDs without an extraneous factor (like the CableCARDs being the only thing requiring conditional access and not having a ton of other CableCARDs to give out on a different conditional access already in place).
But driving back to my earlier point - whether or not a cable operator drops Tivo/CableCARD support is really down to other factors, mainly around the conditional access or some other incompatible network change (high split on Spectrum [again, they seem to be giving out the HS converter boxes if escalated], going IPTV only, etc.)... and dropping QAM entirely in favor of IPTV would mean also trashing a
lot of working cable boxes in the field.