No, not concerned. I think you missed this recent thread which posed the same question.
Could Comcast be bad for Tivo???
http://www.tivocommunity.com/tivo-vb/showthread.php?t=364713
I posted my thoughts on Comcast TiVo. Here is a repost:
I hear more often with more certainty from more people who work in some capacity for Comcast that TiVo is coming out mid September in NE and it's really cool. It will cost $2.95 extra monthly on top of Basic DVR service.
It certainly will be good for TiVo to have the chance to get the TiVo experience into the homes of a large number of new users in a short time. The superior quality, functionality and features of TiVo are not easily communicated. You really need to use it and see for yourself what a difference it makes compared with generic DVR software that most people think is just fine.
We'll have to first see how many customers Comcast can convince to upgrade to the Deluxe DVR Service with TiVo, but I think it will be better than 20% that some keep suggesting. I think Comcast will aggressively leverage it's more than 16 million investment in TiVo development cost for TiVo software and they will push TiVo hard and demonstrate that TiVo Deluxe DVR Service is worth $2.95 extra.
The TiVo software on Comcast could be such a success in many ways for Comcast, that it will become the default DVR service. Comcast will first get as many customers as possible to agree to pay extra for TiVo where it can be first downloaded to Motorola boxes and then just price it all in at some point when it's available everywhere on every DVR box including Scientific Atlanta and others out there in Comcast land. Comcast just agreed to pay for TiVo software development cost for SA boxes and others in Comcast homes, so I think they are serious about an eventual TiVo mass deployment.
Although TiVo makes much less money on a Comcast sub, they will have much lower customer acquisition and support cost resulting in nearly pure profit for each new Comcast sub. The huge upside from Comcast will be the shared revenue from TiVo's advertising solutions deployed across all of TiVo's different platforms including TiVo standalone, DirecTV, Comcast, Cox and more to come. The number of TiVo subscribers will increase quickly and advertising revenue for TiVo could be significant.
The other upside is the TiVo HD will get a boost from the brand building that Comcast will indirectly do for TiVo. There will be a huge opportunity for TiVo to attract more profitable subs from more consumers who get their first taste of TiVo through Comcast and want more.
Another positive of the Comcast relationship is that TiVo is free to provide ready made software solutions for Motorola DVR's in use by other MSO's that was funded by Comcast.
This is an exciting time for TiVo growth. An injunction was placed on Echostar, now under appeal, to unplug 4 million infringing DVR's by a Federal Circuit Court Judge in Texas after being found guilty of willful patent infringement by a Federal jury. If the injunction is upheld by the Federal Court of Appeals, TiVo will get nearly 200 million.
With a solid win in court, TiVo will get some much needed respect and TiVo will have the negotiating power it has never enjoyed. The appeals process is quickly coming to an end with oral arguments set for October 4th and a decision should then follow within a couple of months. This could be a very good Christmas for TiVo Inc and you might just see everyone lining up to pay TiVo licensing fees for the pause and rewind live TV feature covered by TiVo's "Time Warp Patent".