I've not seen it fully myself either, but on the face of it TTT's criticism is confusing. The very first claim Nick Robinson discusses is the "£4,300 worse off", which Nick Robinson instantly describes as "... not a fact/ spun in a way to look as bad as possible, and ... likely to confuse and mislead voters." That is hardly "pro EU propaganda". On the other hand, it's also true that most economic forecasts predict that Brexit will leave us worse off to some extent. Reporting this isn't propaganda either, as long as it's made clear that the fact is in the nature of the forecasts, not their accuracy (which, in practice, we'll only truly appreciate if we do vote to Leave). You should also note that the forecasts are for the short term, and that Brexit is bad in the short term is pretty uncontroversial really. Look at what the markets have been doing recently? Brexit suddenly likely to happen? Massive downturns in the performance of the pound and the markets. Remain vote more likely? Massive upturns in the same figures. This is not an accidental correlation; the markets fear Brexit and will respond to it negatively. In the long-term... well, that depends on what Brexit actually means in practice; on what trade deals we can make, on how far or not we actually get out of the EU.
But anyway -- pessimism or realism, the program appears to give roughly equal weight to the pro-Remain IFS leader and the pro-Leave ex CBI leader. As with many other things, we see what we want to whether it's there or not.